blob: e0e9c29a09ba09db5e49bd73317c933e58c19070 [file] [log] [blame]
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001mbed TLS ChangeLog (Sorted per branch, date)
Paul Bakker99ed6782011-01-05 14:48:42 +00002
Dave Rodgman3ad3efa2021-03-08 18:23:09 +00003= mbed TLS 2.7.19 branch released 2021-03-12
4
5Default behavior changes
6 * In mbedtls_rsa_context objects, the ver field was formerly documented
7 as always 0. It is now reserved for internal purposes and may take
8 different values.
9
10Security
11 * Fix a buffer overflow in mbedtls_mpi_sub_abs() when calculating
12 |A| - |B| where |B| is larger than |A| and has more limbs (so the
13 function should return MBEDTLS_ERR_MPI_NEGATIVE_VALUE). Only
14 applications calling mbedtls_mpi_sub_abs() directly are affected:
15 all calls inside the library were safe since this function is
16 only called with |A| >= |B|. Reported by Guido Vranken in #4042.
17 * Fix an errorneous estimation for an internal buffer in
18 mbedtls_pk_write_key_pem(). If MBEDTLS_MPI_MAX_SIZE is set to an odd
19 value the function might fail to write a private RSA keys of the largest
20 supported size.
21 Found by Daniel Otte, reported in #4093 and fixed in #4094,
22 backported in #4099.
23 * Fix a stack buffer overflow with mbedtls_net_recv_timeout() when given a
24 file descriptor that is beyond FD_SETSIZE. Reported by FigBug in #4169.
25 * Guard against strong local side channel attack against base64 tables by
26 making access aceess to them use constant flow code.
27
28Bugfix
29 * Fix a resource leak in CTR_DRBG and HMAC_DRBG when MBEDTLS_THREADING_C
30 is enabled, on platforms where initializing a mutex allocates resources.
31 This was a regression introduced in the previous release. Reported in
32 #4017, #4045 and #4071.
33 * Ensure that calling mbedtls_rsa_free() or mbedtls_entropy_free()
34 twice is safe. This happens for RSA when some Mbed TLS library functions
35 fail. Such a double-free was not safe when MBEDTLS_THREADING_C was
36 enabled on platforms where freeing a mutex twice is not safe.
37 * Fix a resource leak in a bad-arguments case of mbedtls_rsa_gen_key()
38 when MBEDTLS_THREADING_C is enabled on platforms where initializing
39 a mutex allocates resources.
40 * Fix an incorrect error code if an RSA private operation glitched.
41 * Fix the build of sample programs when MBEDTLS_PEM_C is enabled but
42 MBEDTLS_CERTS_C is disabled. Reported by Michael Schuster in #4206.
43
Janos Follathbd061122020-12-09 01:36:05 +000044= mbed TLS 2.7.18 branch released 2020-12-11
Janos Follathc3ab4052020-12-09 00:34:41 +000045
46Security
47 * Limit the size of calculations performed by mbedtls_mpi_exp_mod to
48 MBEDTLS_MPI_MAX_SIZE to prevent a potential denial of service when
49 generating Diffie-Hellman key pairs. Credit to OSS-Fuzz.
50 * Fix a compliance issue whereby we were not checking the tag on the
51 algorithm parameters (only the size) when comparing the signature in the
52 description part of the cert to the real signature. This meant that a
53 NULL algorithm parameters entry would look identical to an array of REAL
54 (size zero) to the library and thus the certificate would be considered
55 valid. However, if the parameters do not match in *any* way then the
56 certificate should be considered invalid, and indeed OpenSSL marks these
57 certs as invalid when mbedtls did not.
58 Many thanks to guidovranken who found this issue via differential fuzzing
59 and reported it in #3629.
60 * Zeroising of local buffers and variables which are used for calculations
61 in mbedtls_pkcs5_pbkdf2_hmac(), mbedtls_internal_sha*_process(),
62 mbedtls_internal_md*_process() and mbedtls_internal_ripemd160_process()
63 functions to erase sensitive data from memory. Reported by
64 Johan Malmgren and Johan Uppman Bruce from Sectra.
65
66Bugfix
Janos Follath431f42d2020-12-09 16:46:30 +000067 * Fix an invalid (but nonzero) return code from mbedtls_pk_parse_subpubkey()
68 when the input has trailing garbage. Fixes #2512.
Janos Follathc3ab4052020-12-09 00:34:41 +000069 * Fix rsa_prepare_blinding() to retry when the blinding value is not
70 invertible (mod N), instead of returning MBEDTLS_ERR_RSA_RNG_FAILED. This
71 addresses a regression but is rare in practice (approx. 1 in 2/sqrt(N)).
72 Found by Synopsys Coverity, fix contributed by Peter Kolbus (Garmin).
73 Fixes #3647.
74 * Correct the default IV size for mbedtls_cipher_info_t structures using
75 MBEDTLS_MODE_ECB to 0, since ECB mode ciphers don't use IVs.
76 * Fix build failures on GCC 11. Fixes #3782.
77 * Fix a memory leak in mbedtls_mpi_sub_abs() when the result was negative
78 (an error condition) and the second operand was aliased to the result.
79 * Fix a case in elliptic curve arithmetic where an out-of-memory condition
80 could go undetected, resulting in an incorrect result.
81 * In CTR_DRBG and HMAC_DRBG, don't reset the reseed interval in seed().
82 Fixes #2927.
83
84Changes
85 * Reduce stack usage significantly during sliding window exponentiation.
86 Reported in #3591 and fix contributed in #3592 by Daniel Otte.
87 * Remove the zeroization of a pointer variable in AES rounds. It was valid
88 but spurious and misleading since it looked like a mistaken attempt to
89 zeroize the pointed-to buffer. Reported by Antonio de la Piedra, CEA
90 Leti, France.
91
Janos Follath6badb012020-08-26 15:36:15 +010092= mbed TLS 2.7.17 branch released 2020-09-01
Janos Follath681a74d2020-08-26 14:50:38 +010093
94Features
95 * Support building on e2k (Elbrus) architecture: correctly enable
96 -Wformat-signedness, and fix the code that causes signed-one-bit-field
97 and sign-compare warnings. Contributed by makise-homura (Igor Molchanov)
98 <akemi_homura@kurisa.ch>.
99
100Security
101 * When checking X.509 CRLs, a certificate was only considered as revoked if
102 its revocationDate was in the past according to the local clock if
103 available. In particular, on builds without MBEDTLS_HAVE_TIME_DATE,
104 certificates were never considered as revoked. On builds with
105 MBEDTLS_HAVE_TIME_DATE, an attacker able to control the local clock (for
106 example, an untrusted OS attacking a secure enclave) could prevent
107 revocation of certificates via CRLs. Fixed by no longer checking the
108 revocationDate field, in accordance with RFC 5280. Reported by
109 yuemonangong in #3340. Reported independently and fixed by
110 Raoul Strackx and Jethro Beekman in #3433.
111 * In (D)TLS record decryption, when using a CBC ciphersuites without the
112 Encrypt-then-Mac extension, use constant code flow memory access patterns
113 to extract and check the MAC. This is an improvement to the existing
114 countermeasure against Lucky 13 attacks. The previous countermeasure was
115 effective against network-based attackers, but less so against local
116 attackers. The new countermeasure defends against local attackers, even
117 if they have access to fine-grained measurements. In particular, this
118 fixes a local Lucky 13 cache attack found and reported by Tuba Yavuz,
119 Farhaan Fowze, Ken (Yihan) Bai, Grant Hernandez, and Kevin Butler
120 (University of Florida) and Dave Tian (Purdue University).
121 * Fix side channel in RSA private key operations and static (finite-field)
122 Diffie-Hellman. An adversary with precise enough timing and memory access
123 information (typically an untrusted operating system attacking a secure
124 enclave) could bypass an existing counter-measure (base blinding) and
125 potentially fully recover the private key.
126 * Fix a 1-byte buffer overread in mbedtls_x509_crl_parse_der().
127 Credit to OSS-Fuzz for detecting the problem and to Philippe Antoine
128 for pinpointing the problematic code.
129 * Zeroising of plaintext buffers in mbedtls_ssl_read() to erase unused
130 application data from memory. Reported in #689 by
131 Johan Uppman Bruce of Sectra.
132
133Bugfix
134 * Use arc4random_buf on NetBSD instead of rand implementation with cyclical
135 lower bits. Fix contributed in #3540.
136 * Fix building library/net_sockets.c on NetBSD. NetBSD conditionals were
137 added for the backport to avoid the risk of breaking a platform. Original
138 fix contributed by Nia Alarie in #3422. Adopted for long-term support
139 branch 2.7 in #3570.
140 * Fix bug in redirection of unit test outputs on platforms where stdout is
141 defined as a macro. First reported in #2311 and fix contributed in #3528.
142 Adopted for LTS branch 2.7 in #3600.
143
144Changes
145 * Update copyright notices to use Linux Foundation guidance. As a result,
146 the copyright of contributors other than Arm is now acknowledged, and the
147 years of publishing are no longer tracked in the source files. This also
148 eliminates the need for the lines declaring the files to be part of
149 MbedTLS. Fixes #3457.
150
Janos Follath6d5a1092020-06-26 12:55:02 +0100151= mbed TLS 2.7.16 branch released 2020-07-01
Janos Follath994f7c02020-06-26 11:34:34 +0100152
153Security
154 * Fix a side channel vulnerability in modular exponentiation that could
155 reveal an RSA private key used in a secure enclave. Noticed by Sangho Lee,
156 Ming-Wei Shih, Prasun Gera, Taesoo Kim and Hyesoon Kim (Georgia Institute
157 of Technology); and Marcus Peinado (Microsoft Research). Reported by Raoul
158 Strackx (Fortanix) in #3394.
159 * Fix side channel in mbedtls_ecp_check_pub_priv() and
160 mbedtls_pk_parse_key() / mbedtls_pk_parse_keyfile() (when loading a
161 private key that didn't include the uncompressed public key), as well as
162 mbedtls_ecp_mul() / mbedtls_ecp_mul_restartable() when called with a NULL
163 f_rng argument. An attacker with access to precise enough timing and
164 memory access information (typically an untrusted operating system
165 attacking a secure enclave) could fully recover the ECC private key.
166 Found and reported by Alejandro Cabrera Aldaya and Billy Brumley.
167 * Fix issue in Lucky 13 counter-measure that could make it ineffective when
168 hardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT
169 macros). This would cause the original Lucky 13 attack to be possible in
170 those configurations, allowing an active network attacker to recover
171 plaintext after repeated timing measurements under some conditions.
172 Reported and fix suggested by Luc Perneel in #3246.
173
174Bugfix
175 * Fix the Visual Studio Release x64 build configuration for mbedtls itself.
176 Completes a previous fix in Mbed TLS 2.7.12 that only fixed the build for
177 the example programs. Reported in #1430 and fix contributed by irwir.
178 * Fix undefined behavior in X.509 certificate parsing if the
179 pathLenConstraint basic constraint value is equal to INT_MAX.
180 The actual effect with almost every compiler is the intended
181 behavior, so this is unlikely to be exploitable anywhere. #3196
182 * Include asn1.h in error.c. Fixes #3328 reported by David Hu.
183 * Fix potential memory leaks in ecp_randomize_jac() and ecp_randomize_mxz()
184 when PRNG function fails. Contributed by Jonas Lejeune in #3318.
185 * Add additional bounds checks in ssl_write_client_hello() preventing
186 output buffer overflow if the configuration declared a buffer that was
187 too small.
188
189Changes
190 * Unify the example programs termination to call mbedtls_exit() instead of
191 using a return command. This has been done to enable customization of the
192 behavior in bare metal environments.
193 * Abort the ClientHello writing function as soon as some extension doesn't
194 fit into the record buffer. Previously, such extensions were silently
195 dropped. As a consequence, the TLS handshake now fails when the output
196 buffer is not large enough to hold the ClientHello.
197 * The ECP module, enabled by `MBEDTLS_ECP_C`, now depends on
198 `MBEDTLS_CTR_DRBG_C`, `MBEDTLS_HMAC_DRBG_C`, `MBEDTLS_SHA512_C` or
199 `MBEDTLS_SHA256_C` for some side-channel coutermeasures. If side channels
200 are not a concern, this dependency can be avoided by enabling the new
201 option `MBEDTLS_ECP_NO_INTERNAL_RNG`.
202
Janos Follathb4b458f2020-04-08 17:22:51 +0100203= mbed TLS 2.7.15 branch released 2020-04-14
Andres Amaya Garcia87580532018-12-05 21:57:57 +0000204
Manuel Pégourié-Gonnard6062b492020-03-31 12:49:27 +0200205Security
206 * Fix bug in DTLS handling of new associations with the same parameters
207 (RFC 6347 section 4.2.8): after sending its HelloVerifyRequest, the
208 server would end up with corrupted state and only send invalid records to
209 the client. An attacker able to send forged UDP packets to the server
210 could use that to obtain a Denial of Service. This could only happen when
211 MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE was enabled in config.h (which it is
212 by default).
Manuel Pégourié-Gonnard54587fc2020-04-01 11:25:51 +0200213 * Fix side channel in ECC code that allowed an adversary with access to
214 precise enough timing and memory access information (typically an
215 untrusted operating system attacking a secure enclave) to fully recover
216 an ECDSA private key. Found and reported by Alejandro Cabrera Aldaya,
217 Billy Brumley and Cesar Pereida Garcia. CVE-2020-10932
Manuel Pégourié-Gonnard6e0806b2020-04-09 11:56:37 +0200218 * Fix a potentially remotely exploitable buffer overread in a
219 DTLS client when parsing the Hello Verify Request message.
Manuel Pégourié-Gonnard6062b492020-03-31 12:49:27 +0200220
Andres Amaya Garcia87580532018-12-05 21:57:57 +0000221Bugfix
222 * Fix compilation failure when both MBEDTLS_SSL_PROTO_DTLS and
223 MBEDTLS_SSL_HW_RECORD_ACCEL are enabled.
Janos Follathf1bd55f2020-04-09 09:36:33 +0100224 * Fix a function name in a debug message. Contributed by Ercan Ozturk in
225 #3013.
Andres Amaya Garcia87580532018-12-05 21:57:57 +0000226
Janos Follath46337ab2020-02-19 12:09:36 +0000227= mbed TLS 2.7.14 branch released 2020-02-20
Jaeden Amero7e6931d2020-01-24 18:20:22 +0000228
Gilles Peskinef664c4d2020-01-31 12:05:53 +0100229Security
230 * To avoid a side channel vulnerability when parsing an RSA private key,
231 read all the CRT parameters from the DER structure rather than
232 reconstructing them. Found by Alejandro Cabrera Aldaya and Billy Bob
233 Brumley. Reported and fix contributed by Jack Lloyd.
234 ARMmbed/mbed-crypto#352
235
Jaeden Amero7e6931d2020-01-24 18:20:22 +0000236Bugfix
Gilles Peskinef4dd8a92020-01-22 19:04:19 +0100237 * Fix an unchecked call to mbedtls_md() in the x509write module.
Manuel Pégourié-Gonnard08f06eb2020-02-19 09:31:38 +0100238 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
239 RSA keys that would later be rejected by functions expecting private
240 keys. Found by Catena cyber using oss-fuzz (issue 20467).
241 * Fix a bug in mbedtls_pk_parse_key() that would cause it to accept some
242 RSA keys with invalid values by silently fixing those values.
Jaeden Amero7e6931d2020-01-24 18:20:22 +0000243
Jaeden Amerod8180f82020-01-15 16:59:10 +0000244= mbed TLS 2.7.13 branch released 2020-01-15
Jaeden Ameroa5079102018-12-06 15:58:27 +0000245
Janos Follath5cf41f82019-10-25 08:53:01 +0100246Security
247 * Fix side channel vulnerability in ECDSA. Our bignum implementation is not
248 constant time/constant trace, so side channel attacks can retrieve the
249 blinded value, factor it (as it is smaller than RSA keys and not guaranteed
250 to have only large prime factors), and then, by brute force, recover the
251 key. Reported by Alejandro Cabrera Aldaya and Billy Brumley.
Andrzej Kurek07597362019-11-12 03:23:51 -0500252 * Zeroize local variables in mbedtls_internal_aes_encrypt() and
253 mbedtls_internal_aes_decrypt() before exiting the function. The value of
254 these variables can be used to recover the last round key. To follow best
255 practice and to limit the impact of buffer overread vulnerabilities (like
256 Heartbleed) we need to zeroize them before exiting the function.
257 Issue reported by Tuba Yavuz, Farhaan Fowze, Ken (Yihang) Bai,
258 Grant Hernandez, and Kevin Butler (University of Florida) and
259 Dave Tian (Purdue University).
Janos Follathdfa4d712019-11-11 14:18:18 +0000260 * Fix side channel vulnerability in ECDSA key generation. Obtaining precise
261 timings on the comparison in the key generation enabled the attacker to
262 learn leading bits of the ephemeral key used during ECDSA signatures and to
263 recover the private key.
Gilles Peskineb2be1fc2019-11-28 09:45:32 +0100264 * Catch failure of AES functions in mbedtls_ctr_drbg_random(). Uncaught
265 failures could happen with alternative implementations of AES. Bug
266 reported and fix proposed by Johan Uppman Bruce and Christoffer Lauri,
267 Sectra.
Janos Follath5cf41f82019-10-25 08:53:01 +0100268
Gilles Peskine093aa512019-10-18 16:40:10 +0200269Bugfix
270 * Support mbedtls_hmac_drbg_set_entropy_len() and
271 mbedtls_ctr_drbg_set_entropy_len() before the DRBG is seeded. Before,
272 the initial seeding always reset the entropy length to the compile-time
273 default.
274
Jaeden Amero2fc6cf52019-10-02 17:56:38 +0100275Changes
276 * Add unit tests for AES-GCM when called through mbedtls_cipher_auth_xxx()
277 from the cipher abstraction layer. Fixes #2198.
Gilles Peskine97edf5e2019-10-02 19:00:29 +0200278 * Clarify how the interface of the CTR_DRBG and HMAC modules relates to
279 NIST SP 800-90A. In particular CTR_DRBG requires an explicit nonce
280 to achieve a 256-bit strength if MBEDTLS_ENTROPY_FORCE_SHA256 is set.
Jaeden Amero2fc6cf52019-10-02 17:56:38 +0100281
Jaeden Amerod7bd10d2019-09-06 13:28:28 +0100282= mbed TLS 2.7.12 branch released 2019-09-06
Simon Butcher8f902782018-12-28 12:01:09 +0000283
k-stachowiak589de372019-07-10 11:43:23 +0200284Security
285 * Fix a missing error detection in ECJPAKE. This could have caused a
286 predictable shared secret if a hardware accelerator failed and the other
287 side of the key exchange had a similar bug.
Janos Follath660f4f82019-01-16 16:06:18 +0000288 * The deterministic ECDSA calculation reused the scheme's HMAC-DRBG to
289 implement blinding. Because of this for the same key and message the same
290 blinding value was generated. This reduced the effectiveness of the
291 countermeasure and leaked information about the private key through side
292 channels. Reported by Jack Lloyd.
Gilles Peskine93884542018-08-11 00:51:04 +0200293 * When writing a private EC key, use a constant size for the private
294 value, as specified in RFC 5915. Previously, the value was written
295 as an ASN.1 INTEGER, which caused the size of the key to leak
296 about 1 bit of information on average and could cause the value to be
297 1 byte too large for the output buffer.
Janos Follath660f4f82019-01-16 16:06:18 +0000298
Janos Follatha62744d2019-01-21 10:45:48 +0000299API Changes
300 * The new function mbedtls_ecdsa_sign_det_ext() is similar to
301 mbedtls_ecdsa_sign_det() but allows passing an external RNG for the
302 purpose of blinding.
303 * The new function mbedtls_ecp_gen_privkey() allows to generate a private
304 key without generating the public part of the pair.
k-stachowiak589de372019-07-10 11:43:23 +0200305
Simon Butcher8f902782018-12-28 12:01:09 +0000306Bugfix
Simon Butcher57f2f692019-04-18 15:57:30 +0100307 * Fix to allow building test suites with any warning that detects unused
308 functions. Fixes #1628.
Jaeden Amero0b203572019-06-21 13:26:34 +0100309 * Fix typo in net_would_block(). Fixes #528 reported by github-monoculture.
310 * Remove redundant include file in timing.c. Fixes #2640 reported by irwir.
311 * Fix Visual Studio Release x64 build configuration by inheriting
312 PlatformToolset from the project configuration. Fixes #1430 reported by
313 irwir.
314 * Enable Suite B with subset of ECP curves. Make sure the code compiles even
315 if some curves are not defined. Fixes #1591 reported by dbedev.
Gilles Peskine990ea3d2019-06-17 15:15:40 +0200316 * Fix misuse of signed arithmetic in the HAVEGE module. #2598
Gilles Peskinecabbd2e2019-08-03 14:08:46 +0200317 * Update test certificates that were about to expire. Reported by
318 Bernhard M. Wiedemann in #2357.
Gilles Peskine29c317b2019-07-19 17:26:55 +0200319 * Make NV seed test support MBEDTLS_ENTROPY_FORCE_SHA256.
Jaeden Amero68cfefe2019-09-03 16:32:06 +0100320 * Fix memory leak in in mpi_miller_rabin(). Contributed by
321 Jens Wiklander <jens.wiklander@linaro.org> in #2363.
Jaeden Amero0b203572019-06-21 13:26:34 +0100322
323Changes
324 * Make `make clean` clean all programs always. Fixes #1862.
Simon Butcher8f902782018-12-28 12:01:09 +0000325
Jaeden Amero6794f682019-06-11 17:26:05 +0100326= mbed TLS 2.7.11 branch released 2019-06-11
Jaeden Ameroa5079102018-12-06 15:58:27 +0000327
Gilles Peskine0efa8562018-11-07 22:39:16 +0100328Security
329 * Make mbedtls_ecdh_get_params return an error if the second key
330 belongs to a different group from the first. Before, if an application
331 passed keys that belonged to different group, the first key's data was
332 interpreted according to the second group, which could lead to either
333 an error or a meaningless output from mbedtls_ecdh_get_params. In the
334 latter case, this could expose at most 5 bits of the private key.
335
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000336Bugfix
337 * Server's RSA certificate in certs.c was SHA-1 signed. In the default
338 mbedTLS configuration only SHA-2 signed certificates are accepted.
339 This certificate is used in the demo server programs, which lead the
340 client programs to fail at the peer's certificate verification
341 due to an unacceptable hash signature. The certificate has been
342 updated to one that is SHA-256 signed. Fix contributed by
343 Illya Gerasymchuk.
344 * Fix private key DER output in the key_app_writer example. File contents
345 were shifted by one byte, creating an invalid ASN.1 tag. Fixed by
346 Christian Walther in #2239.
Jaeden Amero415255f2019-04-05 13:48:19 +0100347 * Fix potential memory leak in X.509 self test. Found and fixed by
348 Junhwan Park, #2106.
Jaeden Amero99b679f2019-04-05 14:09:25 +0100349 * Fix 1-byte buffer overflow in mbedtls_mpi_write_string() when
Jaeden Amero4430b252019-04-08 11:23:50 +0100350 used with negative inputs. Found by Guido Vranken in #2404. Credit to
351 OSS-Fuzz.
Jaeden Amerof3df5b82019-04-05 14:17:08 +0100352 * Fix bugs in the AEAD test suite which would be exposed by ciphers which
353 either used both encrypt and decrypt key schedules, or which perform padding.
354 GCM and CCM were not affected. Fixed by Jack Lloyd.
Jaeden Amero4ff2eb32019-04-05 14:24:51 +0100355 * Fix incorrect default port number in ssl_mail_client example's usage.
356 Found and fixed by irwir. #2337
Hanno Beckerb2ba79a2018-10-15 12:23:02 +0100357 * Add missing parentheses around parameters in the definition of the
358 public macro MBEDTLS_X509_ID_FLAG. This could lead to invalid evaluation
359 in case operators binding less strongly than subtraction were used
360 for the parameter.
Jaeden Amero555a9252019-04-24 11:21:02 +0100361 * Add a check for MBEDTLS_X509_CRL_PARSE_C in ssl_server2, guarding the crl
362 sni entry parameter. Reported by inestlerode in #560.
Hanno Beckerd7bc9ff2019-06-04 10:27:43 +0100363 * Fix missing bounds checks in X.509 parsing functions that could
364 lead to successful parsing of ill-formed X.509 CRTs. Fixes #2437.
365 * Fix multiple X.509 functions previously returning ASN.1 low-level error
366 codes to always wrap these codes into X.509 high level error codes before
367 returning. Fixes #2431.
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000368
369Changes
370 * Return from various debugging routines immediately if the
371 provided SSL context is unset.
372 * Remove dead code from bignum.c in the default configuration.
373 Found by Coverity, reported and fixed by Peter Kolbus (Garmin). Fixes #2309.
374 * Add test for minimal value of MBEDTLS_MPI_WINDOW_SIZE to all.sh.
375 Contributed by Peter Kolbus (Garmin).
k-stachowiak5b001e02019-04-29 12:58:53 +0200376 * Change wording in the `mbedtls_ssl_conf_max_frag_len()`'s documentation to
377 improve clarity. Fixes #2258.
Jaeden Amero334ab9b2019-06-14 08:48:10 +0100378 * Improve debug output of ssl_client2 and ssl_server2 in case suitable
379 test CRTs are available because MBEDTLS_PEM_PARSE_C is disabled.
380 Fixes #2254.
Hanno Becker253fbfa2019-05-30 11:10:44 +0100381 * Replace multiple uses of MD2 by SHA-256 in X.509 test suite. Fixes #821.
Jaeden Amero1beeeff2019-03-26 14:53:56 +0000382
Jaeden Amerob4686b42019-03-19 16:18:01 +0000383= mbed TLS 2.7.10 branch released 2019-03-19
Jaeden Ameroa5079102018-12-06 15:58:27 +0000384
Manuel Pégourié-Gonnard47237342019-03-01 10:34:21 +0100385Features
386 * Add MBEDTLS_REMOVE_3DES_CIPHERSUITES to allow removing 3DES ciphersuites
387 from the default list (enabled by default). See
388 https://sweet32.info/SWEET32_CCS16.pdf.
389
Jaeden Ameroa5079102018-12-06 15:58:27 +0000390Bugfix
Simon Butcher7f899b42019-01-08 15:31:37 +0000391 * Run the AD too long test only if MBEDTLS_CCM_ALT is not defined.
392 Raised as a comment in #1996.
Simon Butcherc5b6c2f2019-01-23 09:51:48 +0100393 * Fix returning the value 1 when mbedtls_ecdsa_genkey failed.
Masashi Honma4a471122018-12-28 05:40:17 +0900394 * Remove a duplicate #include in a sample program. Fixed by Masashi Honma #2326.
Ron Eldor7c733f82018-11-27 10:33:38 +0200395 * Reduce stack usage of `mpi_write_hlp()` by eliminating recursion.
396 Fixes #2190.
Andres Amaya Garciafc547ff2018-09-26 10:59:20 +0100397 * Ensure that unused bits are zero when writing ASN.1 bitstrings when using
398 mbedtls_asn1_write_bitstring().
399 * Fix issue when writing the named bitstrings in KeyUsage and NsCertType
400 extensions in CSRs and CRTs that caused these bitstrings to not be encoded
401 correctly as trailing zeroes were not accounted for as unused bits in the
402 leading content octet. Fixes #1610.
Simon Butcher7f899b42019-01-08 15:31:37 +0000403
Simon Butcher32331302019-01-23 09:53:41 +0100404Changes
405 * Include configuration file in all header files that use configuration,
406 instead of relying on other header files that they include.
407 Inserted as an enhancement for #1371
Simon Butcherff719bb2018-09-30 15:44:52 +0100408 * Add support for alternative CSR headers, as used by Microsoft and defined
409 in RFC 7468. Found by Michael Ernst. Fixes #767.
Jeffrey Martin55ab90d2019-01-15 09:02:14 -0600410 * Fix clobber list in MIPS assembly for large integer multiplication.
411 Previously, this could lead to functionally incorrect assembly being
412 produced by some optimizing compilers, showing up as failures in
413 e.g. RSA or ECC signature operations. Reported in #1722, fix suggested
Jeffrey Martinf7fe1442019-01-16 09:26:15 -0600414 by Aurelien Jarno and submitted by Jeffrey Martin.
k-stachowiak16373da2019-02-05 10:03:20 +0100415 * Reduce the complexity of the timing tests. They were assuming more than the
416 underlying OS actually guarantees.
Andres Amaya Garcia493a0dc2019-02-19 20:14:00 +0000417 * Ciphersuites based on 3DES now have the lowest priority by default when
418 they are enabled.
Simon Butcher32331302019-01-23 09:53:41 +0100419
Simon Butcherb22a8082018-12-21 10:52:37 +0000420= mbed TLS 2.7.9 branch released 2018-12-21
Jaeden Ameroa5079102018-12-06 15:58:27 +0000421
422Bugfix
423 * Fix for Clang, which was reporting a warning for the bignum.c inline
424 assembly for AMD64 targets creating string literals greater than those
425 permitted by the ISO C99 standard. Found by Aaron Jones. Fixes #482.
Jaeden Ameroa7d16ba2018-12-06 16:02:06 +0000426 * Fix runtime error in `mbedtls_platform_entropy_poll()` when run
427 through qemu user emulation. Reported and fix suggested by randombit
428 in #1212. Fixes #1212.
Jaeden Amero93bfd1d2018-12-06 16:06:21 +0000429 * Fix an unsafe bounds check when restoring an SSL session from a ticket.
430 This could lead to a buffer overflow, but only in case ticket authentication
431 was broken. Reported and fix suggested by Guido Vranken in #659.
Jaeden Ameroa7e5cbd2018-12-06 16:11:22 +0000432 * Add explicit integer to enumeration type casts to example program
433 programs/pkey/gen_key which previously led to compilation failure
434 on some toolchains. Reported by phoenixmcallister. Fixes #2170.
Simon Butcher3112d102018-12-20 01:16:16 +0000435 * Clarify documentation of mbedtls_ssl_set_own_cert() regarding the absence
436 of check for certificate/key matching. Reported by Attila Molnar, #507.
Jaeden Ameroa5079102018-12-06 15:58:27 +0000437
Simon Butcher4a908ca2018-12-01 22:27:25 +0000438= mbed TLS 2.7.8 branch released 2018-11-30
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300439
Gilles Peskineae97c252018-10-03 13:40:16 +0200440Security
Gilles Peskine5d2391e2018-10-05 15:42:52 +0200441 * Fix timing variations and memory access variations in RSA PKCS#1 v1.5
442 decryption that could lead to a Bleichenbacher-style padding oracle
Gilles Peskine813bdeb2018-11-29 12:45:01 +0100443 attack. In TLS, this affects servers that accept ciphersuites based on
444 RSA decryption (i.e. ciphersuites whose name contains RSA but not
Simon Butcherbe16e382018-12-01 22:46:55 +0000445 (EC)DH(E)). Discovered by Eyal Ronen (Weizmann Institute), Robert Gillham
446 (University of Adelaide), Daniel Genkin (University of Michigan),
447 Adi Shamir (Weizmann Institute), David Wong (NCC Group), and Yuval Yarom
448 (University of Adelaide, Data61). The attack is described in more detail
449 in the paper available here: http://cat.eyalro.net/cat.pdf CVE-2018-19608
Gilles Peskine5db9c832018-11-29 12:46:05 +0100450 * In mbedtls_mpi_write_binary(), don't leak the exact size of the number
451 via branching and memory access patterns. An attacker who could submit
452 a plaintext for RSA PKCS#1 v1.5 decryption but only observe the timing
453 of the decryption and not its result could nonetheless decrypt RSA
454 plaintexts and forge RSA signatures. Other asymmetric algorithms may
455 have been similarly vulnerable. Reported by Eyal Ronen, Robert Gillham,
456 Daniel Genkin, Adi Shamir, David Wong and Yuval Yarom.
Gilles Peskinef249e372018-09-11 18:53:58 +0200457 * Wipe sensitive buffers on the stack in the CTR_DRBG and HMAC_DRBG
458 modules.
459
Gilles Peskine94a779b2018-09-13 22:27:12 +0200460API Changes
461 * The new functions mbedtls_ctr_drbg_update_ret() and
462 mbedtls_hmac_drbg_update_ret() are similar to mbedtls_ctr_drbg_update()
463 and mbedtls_hmac_drbg_update() respectively, but the new functions
464 report errors whereas the old functions return void. We recommend that
465 applications use the new functions.
Gilles Peskineae97c252018-10-03 13:40:16 +0200466
Simon Butcher20f30d92018-11-19 18:32:22 +0000467= mbed TLS 2.7.7 branch released 2018-11-19
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300468
Hanno Becker0a08a4a2018-11-02 09:36:45 +0000469Security
Simon Butcher357fbee2018-11-08 13:47:21 +0000470 * Fix overly strict DN comparison when looking for CRLs belonging to a
Simon Butcher7fd58a92018-11-19 16:01:15 +0000471 particular CA. This previously led to ignoring CRLs when the CRL's issuer
Simon Butcher357fbee2018-11-08 13:47:21 +0000472 name and the CA's subject name differed in their string encoding (e.g.,
473 one using PrintableString and the other UTF8String) or in the choice of
474 upper and lower case. Reported by Henrik Andersson of Bosch GmbH in issue
475 #1784.
Simon Butcher7fd58a92018-11-19 16:01:15 +0000476 * Fix a flawed bounds check in server PSK hint parsing. In case the
477 incoming message buffer was placed within the first 64KiB of address
478 space and a PSK-(EC)DHE ciphersuite was used, this allowed an attacker
479 to trigger a memory access up to 64KiB beyond the incoming message buffer,
480 potentially leading to application crash or information disclosure.
Simon Butcher357fbee2018-11-08 13:47:21 +0000481 * Fix mbedtls_mpi_is_prime() to use more rounds of probabilistic testing. The
482 previous settings for the number of rounds made it practical for an
483 adversary to construct non-primes that would be erroneously accepted as
484 primes with high probability. This does not have an impact on the
Simon Butcher7fd58a92018-11-19 16:01:15 +0000485 security of TLS, but can matter in other contexts with numbers chosen
486 potentially by an adversary that should be prime and can be validated.
Simon Butcher357fbee2018-11-08 13:47:21 +0000487 For example, the number of rounds was enough to securely generate RSA key
488 pairs or Diffie-Hellman parameters, but was insufficient to validate
489 Diffie-Hellman parameters properly.
490 See "Prime and Prejudice" by by Martin R. Albrecht and Jake Massimo and
491 Kenneth G. Paterson and Juraj Somorovsky.
Hanno Becker0a08a4a2018-11-02 09:36:45 +0000492
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300493Bugfix
494 * Fix failure in hmac_drbg in the benchmark sample application, when
495 MBEDTLS_THREADING_C is defined. Found by TrinityTonic, #1095
Simon Butcher651902d2018-09-26 22:35:51 +0100496 * Fix a bug in the update function for SSL ticket keys which previously
497 invalidated keys of a lifetime of less than a 1s. Fixes #1968.
Hanno Becker7e1913b2018-10-17 14:53:05 +0100498 * Fix a bug in the record decryption routine ssl_decrypt_buf()
Simon Butcher7fd58a92018-11-19 16:01:15 +0000499 which led to accepting properly authenticated but improperly
Hanno Becker7e1913b2018-10-17 14:53:05 +0100500 padded records in case of CBC ciphersuites using Encrypt-then-MAC.
Hanno Becker591cdb02018-10-09 12:44:35 +0100501 * Fix wrong order of freeing in programs/ssl/ssl_server2 example
502 application leading to a memory leak in case both
503 MBEDTLS_MEMORY_BUFFER_ALLOC_C and MBEDTLS_MEMORY_BACKTRACE are set.
504 Fixes #2069.
Hanno Becker16a77622018-10-05 09:51:36 +0100505 * Fix memory leak and freeing without initialization in the example
506 program programs/x509/cert_write. Fixes #1422.
Simon Butcher357fbee2018-11-08 13:47:21 +0000507 * Ignore IV in mbedtls_cipher_set_iv() when the cipher mode is
508 MBEDTLS_MODE_ECB. Found by ezdevelop. Fixes for #1091.
Hanno Becker74a1c4b2018-10-15 13:20:28 +0100509 * Zeroize memory used for reassembling handshake messages after use.
510 * Use `mbedtls_zeroize()` instead of `memset()` for zeroization of
511 sensitive data in the example programs aescrypt2 and crypt_and_hash.
Hanno Becker85adbfa2018-10-11 10:54:45 +0100512 * Fix compilation failure for configurations which use compile time
513 replacements of standard calloc/free functions through the macros
514 MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_FREE_MACRO.
515 Reported by ole-de and ddhome2006. Fixes #882, #1642 and #1706.
Ron Eldorf19a7ab2018-06-20 18:40:21 +0300516
Simon Butcherfa5054f2018-09-26 22:56:03 +0100517Changes
518 * Add tests for session resumption in DTLS.
Simon Butcherf73b4372018-09-26 22:57:24 +0100519 * Close a test gap in (D)TLS between the client side and the server side:
520 test the handling of large packets and small packets on the client side
521 in the same way as on the server side.
Simon Butcher7c9086b2018-05-12 20:28:56 +0100522 * Change the dtls_client and dtls_server samples to work by default over
523 IPv6 and optionally by a build option over IPv4.
Simon Butcher7b28abc2018-11-04 18:51:49 +0000524 * Change the use of Windows threading to use Microsoft Visual C++ runtime
525 calls, rather than Win32 API calls directly. This is necessary to avoid
526 conflict with C runtime usage. Found and fixed by irwir.
Hanno Becker0b0753c2018-10-30 10:08:33 +0000527 * Improve documentation of mbedtls_ssl_get_verify_result().
528 Fixes #517 reported by github-monoculture.
Simon Butcherfa5054f2018-09-26 22:56:03 +0100529
Simon Butcher34997fd2018-08-31 16:07:23 +0100530= mbed TLS 2.7.6 branch released 2018-08-31
Simon Butcher51a46b92018-07-30 22:15:14 +0100531
k-stachowiak6cba5692018-07-09 14:45:00 +0200532Security
k-stachowiak55bea652018-07-16 12:14:18 +0200533 * Fix an issue in the X.509 module which could lead to a buffer overread
534 during certificate extensions parsing. In case of receiving malformed
535 input (extensions length field equal to 0), an illegal read of one byte
536 beyond the input buffer is made. Found and analyzed by Nathan Crandall.
k-stachowiak6cba5692018-07-09 14:45:00 +0200537
Simon Butcher51a46b92018-07-30 22:15:14 +0100538Bugfix
Simon Butchera36fe372018-08-31 12:00:58 +0100539 * Fix a potential memory leak in mbedtls_ssl_setup() function. An allocation
540 failure in the function could lead to other buffers being leaked.
Simon Butcherd6a63f42018-09-13 11:59:03 +0100541 * Fixes a missing test dependency on MBEDTLS_ARC4_C. #1890
Jaeden Amero3b691742018-08-10 10:50:34 +0100542 * Fix a memory leak in ecp_mul_comb() if ecp_precompute_comb() fails.
543 Fix contributed by Espressif Systems.
Ron Eldor335cf422018-06-21 16:40:24 +0300544 * Add ecc extensions only if an ecc based ciphersuite is used.
Ron Eldor6a5d6e22018-06-28 11:09:09 +0300545 This improves compliance to RFC 4492, and as a result, solves
546 interoperability issues with BouncyCastle. Raised by milenamil in #1157.
Hanno Becker80588002018-08-13 16:36:58 +0100547 * Fix potential use-after-free in mbedtls_ssl_get_max_frag_len()
548 and mbedtls_ssl_get_record_expansion() after a session reset. Fixes #1941.
Hanno Beckerf38db012018-08-03 09:53:48 +0100549 * Fix a miscalculation of the maximum record expansion in
550 mbedtls_ssl_get_record_expansion() in case of CBC ciphersuites
551 in (D)TLS versions 1.1 or higher. Fixes #1914.
Hanno Becker517e84a2018-08-17 09:47:22 +0100552 * Fix a bug that caused SSL/TLS clients to incorrectly abort the handshake
553 with TLS versions 1.1 and earlier when the server requested authentication
554 without providing a list of CAs. This was due to an overly strict bounds
Simon Butcherd6a63f42018-09-13 11:59:03 +0100555 check in parsing the CertificateRequest message, introduced in
556 Mbed TLS 2.12.0. Fixes #1954.
Philippe Antoine84cc74e2018-05-11 11:06:29 +0200557 * Fix undefined shifts with negative values in certificates parsing
558 (found by Catena cyber using oss-fuzz)
Hanno Becker20b5d142017-10-08 16:13:03 +0100559 * Fix memory leak and free without initialization in pk_encrypt
560 and pk_decrypt example programs. Reported by Brace Stout. Fixes #1128.
Simon Butcher51a46b92018-07-30 22:15:14 +0100561
Jaeden Amero9eb78b42018-08-10 11:26:15 +0100562Changes
563 * Improve compatibility with some alternative CCM implementations by using
564 CCM test vectors from RAM.
565
Jaeden Amero83851102018-07-25 15:36:21 +0100566= mbed TLS 2.7.5 branch released 2018-07-25
Andres AGee7157e2016-12-07 10:25:19 +0000567
Gilles Peskineb2d88402018-06-27 10:57:33 +0200568Security
569 * Fix a vulnerability in TLS ciphersuites based on CBC and using SHA-384,
570 in (D)TLS 1.0 to 1.2, that allowed an active network attacker to
571 partially recover the plaintext of messages under some conditions by
572 exploiting timing measurements. With DTLS, the attacker could perform
573 this recovery by sending many messages in the same connection. With TLS
574 or if mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only
575 worked if the same secret (for example a HTTP Cookie) has been repeatedly
576 sent over connections manipulated by the attacker. Connections using GCM
577 or CCM instead of CBC, using hash sizes other than SHA-384, or using
578 Encrypt-then-Mac (RFC 7366) were not affected. The vulnerability was
579 caused by a miscalculation (for SHA-384) in a countermeasure to the
580 original Lucky 13 attack. Found by Kenny Paterson, Eyal Ronen and Adi
581 Shamir.
Manuel Pégourié-Gonnard5fcfd032018-06-28 12:10:27 +0200582 * Fix a vulnerability in TLS ciphersuites based on CBC, in (D)TLS 1.0 to
583 1.2, that allowed a local attacker, able to execute code on the local
584 machine as well as manipulate network packets, to partially recover the
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200585 plaintext of messages under some conditions by using a cache attack
Antonin Décimo8fd91562019-01-23 15:24:37 +0100586 targeting an internal MD/SHA buffer. With TLS or if
Manuel Pégourié-Gonnardaba8c5b2018-07-11 18:27:08 +0200587 mbedtls_ssl_conf_dtls_badmac_limit() was used, the attack only worked if
588 the same secret (for example a HTTP Cookie) has been repeatedly sent over
589 connections manipulated by the attacker. Connections using GCM or CCM
590 instead of CBC or using Encrypt-then-Mac (RFC 7366) were not affected.
591 Found by Kenny Paterson, Eyal Ronen and Adi Shamir.
Manuel Pégourié-Gonnardaeeaaf22018-06-28 10:38:35 +0200592 * Add a counter-measure against a vulnerability in TLS ciphersuites based
593 on CBC, in (D)TLS 1.0 to 1.2, that allowed a local attacker, able to
594 execute code on the local machine as well as manipulate network packets,
595 to partially recover the plaintext of messages under some conditions (see
596 previous entry) by using a cache attack targeting the SSL input record
597 buffer. Connections using GCM or CCM instead of CBC or using
598 Encrypt-then-Mac (RFC 7366) were not affected. Found by Kenny Paterson,
599 Eyal Ronen and Adi Shamir.
Gilles Peskineb2d88402018-06-27 10:57:33 +0200600
Simon Butcherf15cfd52018-06-27 11:05:44 +0100601Bugfix
niisato2120ef82018-06-25 20:07:10 +0900602 * Fix compilation error on C++, because of a variable named new.
603 Found and fixed by Hirotaka Niisato in #1783.
Simon Butcherc6bf5b42018-06-24 16:20:56 +0100604 * Fix the inline assembly for the MPI multiply helper function for i386 and
605 i386 with SSE2. Found by László Langó. Fixes #1550
Simon Butcher9a08e442018-06-22 12:02:59 +0100606 * Fix a memory leak in mbedtls_x509_csr_parse(), found by catenacyber,
Simon Butcher41c23b52018-06-28 12:13:57 +0100607 Philippe Antoine. Fixes #1623.
Andres Amaya Garcia294331a2017-07-11 14:39:30 +0100608 * Clarify documentation for mbedtls_ssl_write() to include 0 as a valid
609 return value. Found by @davidwu2000. #839
Simon Butchera67b20c2018-06-28 11:59:51 +0100610 * Fix the key_app_writer example which was writing a leading zero byte which
611 was creating an invalid ASN.1 tag. Found by Aryeh R. Fixes #1257.
Simon Butcher318cd2c2018-07-02 12:00:54 +0100612 * Remove unused headers included in x509.c. Found by Chris Hanson and fixed
613 by Brendan Shanks. Part of a fix for #992.
Ron Eldor22bc7c12018-06-17 14:51:59 +0300614 * Fix compilation error when MBEDTLS_ARC4_C is disabled and
615 MBEDTLS_CIPHER_NULL_CIPHER is enabled. Found by TrinityTonic in #1719.
Simon Butcher7924d932018-07-19 19:54:18 +0100616 * Added length checks to some TLS parsing functions. Found and fixed by
617 Philippe Antoine from Catena cyber. #1663.
Ron Eldor612a6002017-10-01 17:11:54 +0300618 * Fix namespacing in header files. Remove the `mbedtls` namespacing in
Ron Eldordf9b93e2017-05-14 16:17:33 +0300619 the `#include` in the header files. Resolves #857
Simon Butcherc6a0fd82018-07-24 10:03:41 +0100620 * Fix compiler warning of 'use before initialisation' in
621 mbedtls_pk_parse_key(). Found by Martin Boye Petersen and fixed by Dawid
622 Drozd. #1098
Simon Butchera8ee41c2018-07-24 12:59:21 +0100623 * Fix decryption for zero length messages (which contain all padding) when a
624 CBC based ciphersuite is used together with Encrypt-then-MAC. Previously,
625 such a message was wrongly reported as an invalid record and therefore lead
626 to the connection being terminated. Seen most often with OpenSSL using
627 TLS 1.0. Reported by @kFYatek and by Conor Murphy on the forum. Fix
628 contributed by Espressif Systems. Fixes #1632
Andres Amaya Garcia8e346dc2018-07-04 10:01:39 +0100629 * Fix ssl_client2 example to send application data with 0-length content
630 when the request_size argument is set to 0 as stated in the documentation.
631 Fixes #1833.
Simon Butchera6462192018-07-25 17:30:20 +0100632 * Correct the documentation for `mbedtls_ssl_get_session()`. This API has
633 deep copy of the session, and the peer certificate is not lost. Fixes #926.
Simon Butcherf15cfd52018-06-27 11:05:44 +0100634
Simon Butchera063fff2018-07-10 15:20:26 +0100635Changes
Simon Butchera6462192018-07-25 17:30:20 +0100636 * Fail when receiving a TLS alert message with an invalid length, or invalid
637 zero-length messages when using TLS 1.2. Contributed by Espressif Systems.
Simon Butchera063fff2018-07-10 15:20:26 +0100638 * Change the shebang line in Perl scripts to look up perl in the PATH.
639 Contributed by fbrosson in #1533.
640
Simon Butcher662ae9e2018-06-18 14:42:14 +0100641= mbed TLS 2.7.4 branch released 2018-06-18
Moran Peker9259b3b2018-02-25 13:29:03 +0200642
643Bugfix
644 * Fix redundant declaration of mbedtls_ssl_list_ciphersuites. Raised by
645 TrinityTonic. #1359.
Simon Butcher4e5edf32018-06-08 16:23:17 +0100646 * Fix for redefinition of _WIN32_WINNT to avoid overriding a definition
647 used by user applications. Found and fixed by Fabio Alessandrelli.
Darryl Green68207f82017-11-27 17:12:14 +0000648 * Fix braces in mbedtls_memory_buffer_alloc_status(). Found by sbranden, #552.
Simon Butcherd8ea8d42018-06-01 19:11:55 +0100649 * Fix an issue with MicroBlaze support in bn_mul.h which was causing the
650 build to fail. Found by zv-io. Fixes #1651.
Simon Butcher49de6b82018-06-14 08:58:59 +0100651 * Fix compilation warnings with IAR toolchain, on 32 bit platform.
652 Reported by rahmanih in #683
Moran Peker9259b3b2018-02-25 13:29:03 +0200653
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100654Changes
655 * Support TLS testing in out-of-source builds using cmake. Fixes #1193.
Simon Butchera96b9d42018-06-12 17:42:02 +0100656 * Changed CMake defaults for IAR to treat all compiler warnings as errors.
Simon Butcher02582b22018-06-18 11:56:13 +0100657 * Changed the Clang parameters used in the CMake build files to work for
658 versions later than 3.6. Versions of Clang earlier than this may no longer
659 work. Fixes #1072
Gilles Peskineb2f09c32018-03-21 12:38:00 +0100660
Jaeden Amero1fc4d332018-04-27 13:15:45 +0100661= mbed TLS 2.7.3 branch released 2018-04-30
Andres AGee7157e2016-12-07 10:25:19 +0000662
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100663Security
Simon Butcher88cc9412018-04-30 17:23:00 +0100664 * Fix an issue in the X.509 module which could lead to a buffer overread
665 during certificate validation. Additionally, the issue could also lead to
666 unnecessary callback checks being made or to some validation checks to be
667 omitted. The overread could be triggered remotely, while the other issues
668 would require a non DER-compliant certificate to be correctly signed by a
669 trusted CA, or a trusted CA with a non DER-compliant certificate. Found by
670 luocm. Fixes #825.
671 * Fix the buffer length assertion in the ssl_parse_certificate_request()
672 function which led to an arbitrary overread of the message buffer. The
673 overreads could be caused by receiving a malformed message at the point
674 where an optional signature algorithms list is expected when the signature
675 algorithms section is too short. In builds with debug output, the overread
676 data is output with the debug data.
Andrzej Kurekef30d962018-04-25 05:29:00 -0400677 * Fix a client-side bug in the validation of the server's ciphersuite choice
Simon Butcher88cc9412018-04-30 17:23:00 +0100678 which could potentially lead to the client accepting a ciphersuite it didn't
679 offer or a ciphersuite that cannot be used with the TLS or DTLS version
680 chosen by the server. This could lead to corruption of internal data
681 structures for some configurations.
Hanno Becker9a37e0f2017-09-25 10:51:32 +0100682
Andres AGee7157e2016-12-07 10:25:19 +0000683Bugfix
Simon Butcher88cc9412018-04-30 17:23:00 +0100684 * Fix a spurious uninitialized variable warning in cmac.c. Fix independently
Gilles Peskine8980da52018-03-22 21:49:43 +0100685 contributed by Brian J Murray and David Brown.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100686 * Add missing dependencies in test suites that led to build failures
687 in configurations that omit certain hashes or public-key algorithms.
688 Fixes #1040.
Jaeden Amero5f97be62018-03-26 18:32:14 +0100689 * Fix C89 incompatibility in benchmark.c. Contributed by Brendan Shanks.
690 #1353
Gilles Peskine1dc8e812018-03-27 23:08:53 +0200691 * Add missing dependencies for MBEDTLS_HAVE_TIME_DATE and
Simon Butcher88cc9412018-04-30 17:23:00 +0100692 MBEDTLS_VERSION_FEATURES in some test suites. Contributed by
693 Deomid Ryabkov. Fixes #1299, #1475.
694 * Fix the Makefile build process for building shared libraries on Mac OS X.
695 Fixed by mnacamura.
Jethro Beekman004e3712018-02-16 13:11:04 -0800696 * Fix parsing of PKCS#8 encoded Elliptic Curve keys. Previously Mbed TLS was
Simon Butcher88cc9412018-04-30 17:23:00 +0100697 unable to parse keys which had only the optional parameters field of the
698 ECPrivateKey structure. Found by Jethro Beekman, fixed in #1379.
699 * Return the plaintext data more quickly on unpadded CBC decryption, as
700 stated in the mbedtls_cipher_update() documentation. Contributed by
701 Andy Leiserson.
Andrzej Kurekd9594922018-03-26 04:13:24 -0400702 * Fix overriding and ignoring return values when parsing and writing to
703 a file in pk_sign program. Found by kevlut in #1142.
Krzysztof Stachowiak7da50882018-04-04 13:47:40 +0200704 * Fix buffer length assertions in the ssl_parse_certificate_request()
705 function which leads to a potential one byte overread of the message
706 buffer.
Andrzej Kurekc3a3e2d2018-04-23 08:39:13 -0400707 * Fix invalid buffer sizes passed to zlib during record compression and
708 decompression.
Gilles Peskine8980da52018-03-22 21:49:43 +0100709
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100710Changes
Simon Butcher88cc9412018-04-30 17:23:00 +0100711 * Support cmake builds where Mbed TLS is a subproject. Fix contributed
712 independently by Matthieu Volat and Arne Schwabe.
Gilles Peskined4dc1a02018-03-23 01:42:44 +0100713 * Improve testing in configurations that omit certain hashes or
714 public-key algorithms. Includes contributions by Gert van Dijk.
715 * Improve negative testing of X.509 parsing.
Jaeden Ameroef59b732018-03-28 14:21:19 +0100716 * Do not define global mutexes around readdir() and gmtime() in
717 configurations where the feature is disabled. Found and fixed by Gergely
718 Budai.
Andres Amaya Garcia3b4d5c22018-03-27 21:19:50 +0100719 * Provide an empty implementation of mbedtls_pkcs5_pbes2() when
720 MBEDTLS_ASN1_PARSE_C is not enabled. This allows the use of PBKDF2
721 without PBES2. Fixed by Marcos Del Sol Vives.
Jaeden Amero0c692cd2018-03-29 11:02:52 +0100722 * Improve the documentation of mbedtls_net_accept(). Contributed by Ivan
723 Krylov.
Darryl Green28448b22018-03-29 16:05:44 +0100724 * Improve the documentation of mbedtls_ssl_write(). Suggested by
725 Paul Sokolovsky in #1356.
Simon Butcher88cc9412018-04-30 17:23:00 +0100726 * Add an option in the Makefile to support ar utilities where the operation
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100727 letter must not be prefixed by '-', such as LLVM. Found and fixed by
728 Alex Hixon.
Andres Amaya Garcia89320a42018-03-25 23:57:09 +0100729 * Allow configuring the shared library extension by setting the DLEXT
Andres Amaya Garcia8ee21562018-03-27 19:14:24 +0100730 environment variable when using the project makefiles.
Gilles Peskine1852d662018-04-04 10:19:24 +0200731 * In the SSL module, when f_send, f_recv or f_recv_timeout report
732 transmitting more than the required length, return an error. Raised by
Jaeden Amerob5f53b12018-04-03 12:09:45 +0100733 Sam O'Connor in #1245.
Jaeden Amerod8e0cec2018-04-03 18:27:54 +0100734 * Improve robustness of mbedtls_ssl_derive_keys against the use of
735 HMAC functions with non-HMAC ciphersuites. Independently contributed
736 by Jiayuan Chen in #1377. Fixes #1437.
Gilles Peskine9b9cc612018-03-22 17:03:45 +0100737
Jaeden Amero9ae1fba2018-03-16 16:30:17 +0000738= mbed TLS 2.7.2 branch released 2018-03-16
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200739
Gilles Peskine955d7042018-03-13 17:24:33 +0100740Security
741 * Verify results of RSA private key operations to defend
742 against Bellcore glitch attack.
Jaeden Amero8a032e62018-03-14 18:01:54 +0000743 * Fix a buffer overread in ssl_parse_server_key_exchange() that could cause
744 a crash on invalid input.
745 * Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a
746 crash on invalid input.
Manuel Pégourié-Gonnard5a9f46e2018-03-13 11:53:30 +0100747 * Fix CRL parsing to reject CRLs containing unsupported critical
748 extensions. Found by Falko Strenzke and Evangelos Karatsiolis.
Gilles Peskine955d7042018-03-13 17:24:33 +0100749
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800750Features
751 * Extend PKCS#8 interface by introducing support for the entire SHA
752 algorithms family when encrypting private keys using PKCS#5 v2.0.
Gilles Peskine60130042018-02-14 11:33:30 +0100753 This allows reading encrypted PEM files produced by software that
754 uses PBKDF2-SHA2, such as OpenSSL 1.1. Submitted by Antonio Quartulli,
755 OpenVPN Inc. Fixes #1339
Antonio Quartulli12ccef22017-12-20 07:03:55 +0800756
Gilles Peskine158fc332018-03-11 00:47:54 +0100757Bugfix
758 * Fix setting version TLSv1 as minimal version, even if TLS 1
759 is not enabled. Set MBEDTLS_SSL_MIN_MAJOR_VERSION
760 and MBEDTLS_SSL_MIN_MINOR_VERSION instead of
761 MBEDTLS_SSL_MAJOR_VERSION_3 and MBEDTLS_SSL_MINOR_VERSION_1. #664
Ron Eldor2f73c932017-09-26 15:06:56 +0300762 * Fix compilation error on Mingw32 when _TRUNCATE is defined. Use _TRUNCATE
763 only if __MINGW32__ not defined. Fix suggested by Thomas Glanzmann and
Ron Eldorbc18eb32017-09-06 17:49:10 +0300764 Nick Wilson on issue #355
Gilles Peskine8eda5ec2018-03-11 00:21:32 +0100765 * In test_suite_pk, pass valid parameters when testing for hash length
766 overflow. #1179
Gilles Peskinec5671bd2018-03-12 23:44:56 +0100767 * Fix memory allocation corner cases in memory_buffer_alloc.c module. Found
768 by Guido Vranken. #639
Jaeden Ameroc9908f02018-03-15 14:58:24 +0000769 * Log correct number of ciphersuites used in Client Hello message. #918
Andres Amaya Garcia32ec6d42017-08-25 17:17:34 +0100770 * Fix X509 CRT parsing that would potentially accept an invalid tag when
771 parsing the subject alternative names.
Jaeden Amero100273d2018-03-14 17:58:00 +0000772 * Fix a possible arithmetic overflow in ssl_parse_server_key_exchange()
773 that could cause a key exchange to fail on valid data.
774 * Fix a possible arithmetic overflow in ssl_parse_server_psk_hint() that
775 could cause a key exchange to fail on valid data.
Jaeden Amero32ae73b2018-03-14 17:59:59 +0000776 * Don't define mbedtls_aes_decrypt and mbedtls_aes_encrypt under
777 MBEDTLS_DEPRECATED_REMOVED. #1388
Sanne Woudacf793122017-09-07 16:33:44 +0100778 * Fix a 1-byte heap buffer overflow (read-only) during private key parsing.
779 Found through fuzz testing.
Gilles Peskine158fc332018-03-11 00:47:54 +0100780
Gilles Peskine9c4f4032017-05-29 14:46:36 +0200781Changes
782 * Clarify the documentation of mbedtls_ssl_setup.
783
Jaeden Amero6a4e22c2018-02-23 11:31:04 +0000784= mbed TLS 2.7.1 branch released 2018-02-23
Gilles Peskine27b07542018-02-14 14:07:48 +0100785
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100786Default behavior changes
787 * The truncated HMAC extension now conforms to RFC 6066. This means
788 that when both sides of a TLS connection negotiate the truncated
789 HMAC extension, Mbed TLS can now interoperate with other
790 compliant implementations, but this breaks interoperability with
791 prior versions of Mbed TLS. To restore the old behavior, enable
792 the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
793 config.h. Found by Andreas Walz (ivESK, Offenburg University of
794 Applied Sciences).
795
Hanno Becker7dc832b2017-11-16 17:39:34 +0000796Security
Gilles Peskine04f9bd02018-02-22 15:22:44 +0100797 * Fix implementation of the truncated HMAC extension. The previous
798 implementation allowed an offline 2^80 brute force attack on the
799 HMAC key of a single, uninterrupted connection (with no
800 resumption of the session).
Hanno Becker7dc832b2017-11-16 17:39:34 +0000801
Gilles Peskine27b07542018-02-14 14:07:48 +0100802Bugfix
803 * Fix the name of a DHE parameter that was accidentally changed in 2.7.0.
804 Fixes #1358.
Gilles Peskine1e3fd692018-02-14 15:12:49 +0100805 * Fix test_suite_pk to work on 64-bit ILP32 systems. #849
Ron Eldor099e61d2018-02-06 17:34:27 +0200806 * Fix mbedtls_x509_crt_profile_suiteb, which used to reject all certificates
807 with flag MBEDTLS_X509_BADCERT_BAD_PK even when the key type was correct.
Gilles Peskinef936cb12018-02-27 08:37:52 +0100808 In the context of SSL, this resulted in handshake failure. Reported by
809 daniel in the Mbed TLS forum. #1351
Jaeden Ameroa0d60a42018-02-21 13:32:39 +0000810 * Fix Windows x64 builds with the included mbedTLS.sln file. #1347
Gilles Peskine27b07542018-02-14 14:07:48 +0100811
812Changes
813 * Fix tag lengths and value ranges in the documentation of CCM encryption.
814 Contributed by Mathieu Briand.
Gilles Peskine5daa7652018-02-14 14:10:24 +0100815 * Fix typo in a comment ctr_drbg.c. Contributed by Paul Sokolovsky.
Gilles Peskine49451922018-02-21 17:59:40 +0100816 * MD functions deprecated in 2.7.0 are no longer inline, to provide
817 a migration path for those depending on the library's ABI.
Gilles Peskine27b07542018-02-14 14:07:48 +0100818
Simon Butcher55fc4e02018-02-05 01:09:13 +0000819= mbed TLS 2.7.0 branch released 2018-02-03
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100820
Gilles Peskine28a0c722017-10-17 19:01:38 +0200821Security
Simon Butcher55fc4e02018-02-05 01:09:13 +0000822 * Fix a heap corruption issue in the implementation of the truncated HMAC
823 extension. When the truncated HMAC extension is enabled and CBC is used,
824 sending a malicious application packet could be used to selectively corrupt
825 6 bytes on the peer's heap, which could potentially lead to crash or remote
826 code execution. The issue could be triggered remotely from either side in
827 both TLS and DTLS. CVE-2018-0488
828 * Fix a buffer overflow in RSA-PSS verification when the hash was too large
829 for the key size, which could potentially lead to crash or remote code
830 execution. Found by Seth Terashima, Qualcomm Product Security Initiative,
831 Qualcomm Technologies Inc. CVE-2018-0487
832 * Fix buffer overflow in RSA-PSS verification when the unmasked data is all
833 zeros.
834 * Fix an unsafe bounds check in ssl_parse_client_psk_identity() when adding
835 64 KiB to the address of the SSL buffer and causing a wrap around.
836 * Fix a potential heap buffer overflow in mbedtls_ssl_write(). When the (by
Hanno Becker930025d2017-09-18 16:07:19 +0100837 default enabled) maximum fragment length extension is disabled in the
838 config and the application data buffer passed to mbedtls_ssl_write
839 is larger than the internal message buffer (16384 bytes by default), the
840 latter overflows. The exploitability of this issue depends on whether the
841 application layer can be forced into sending such large packets. The issue
842 was independently reported by Tim Nordell via e-mail and by Florin Petriuc
Simon Butcher55fc4e02018-02-05 01:09:13 +0000843 and sjorsdewit on GitHub. Fix proposed by Florin Petriuc in #1022.
844 Fixes #707.
845 * Add a provision to prevent compiler optimizations breaking the time
846 constancy of mbedtls_ssl_safer_memcmp().
Andres Amaya Garcia364051f2017-07-05 15:40:17 +0100847 * Ensure that buffers are cleared after use if they contain sensitive data.
Andres Amaya Garciad48ba2b2017-07-06 17:17:43 +0100848 Changes were introduced in multiple places in the library.
Ron Eldor31162e42017-09-05 15:34:35 +0300849 * Set PEM buffer to zero before freeing it, to avoid decoded private keys
850 being leaked to memory after release.
Janos Follathb174c842017-09-20 16:26:04 +0100851 * Fix dhm_check_range() failing to detect trivial subgroups and potentially
852 leaking 1 bit of the private key. Reported by prashantkspatil.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000853 * Make mbedtls_mpi_read_binary() constant-time with respect to the input
854 data. Previously, trailing zero bytes were detected and omitted for the
855 sake of saving memory, but potentially leading to slight timing
856 differences. Reported by Marco Macchetti, Kudelski Group.
Hanno Becker509fef72017-10-19 10:10:18 +0100857 * Wipe stack buffer temporarily holding EC private exponent
858 after keypair generation.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000859 * Fix a potential heap buffer over-read in ALPN extension parsing
Manuel Pégourié-Gonnard239987f2018-01-09 10:43:43 +0100860 (server-side). Could result in application crash, but only if an ALPN
861 name larger than 16 bytes had been configured on the server.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100862 * Change default choice of DHE parameters from untrustworthy RFC 5114
863 to RFC 3526 containing parameters generated in a nothing-up-my-sleeve
864 manner.
Gilles Peskine28a0c722017-10-17 19:01:38 +0200865
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200866Features
867 * Allow comments in test data files.
Gilles Peskinec82fbb42017-12-15 15:01:27 +0100868 * The selftest program can execute a subset of the tests based on command
869 line arguments.
Gilles Peskine8873bcc2017-10-27 18:42:32 +0200870 * New unit tests for timing. Improve the self-test to be more robust
871 when run on a heavily-loaded machine.
Gilles Peskine618d0912018-01-02 16:04:19 +0100872 * Add alternative implementation support for CCM and CMAC (MBEDTLS_CCM_ALT,
Jaeden Amero91d49e82018-01-11 16:35:44 +0000873 MBEDTLS_CMAC_ALT). Submitted by Steven Cooreman, Silicon Labs.
Jaeden Amero15263302017-09-21 12:53:48 +0100874 * Add support for alternative implementations of GCM, selected by the
Gilles Peskine8e09d8f2018-01-02 16:09:42 +0100875 configuration flag MBEDTLS_GCM_ALT.
Ron Eldor314adb62017-10-10 18:28:25 +0300876 * Add support for alternative implementations for ECDSA, controlled by new
877 configuration flags MBEDTLS_ECDSA_SIGN_ALT, MBEDTLS_ECDSA_VERIFY_ALT and
878 MBEDTLS_ECDSDA_GENKEY_AT in config.h.
Ron Eldor2981a0a2017-09-24 15:41:09 +0300879 The following functions from the ECDSA module can be replaced
Ron Eldor314adb62017-10-10 18:28:25 +0300880 with alternative implementation:
Ron Eldor2981a0a2017-09-24 15:41:09 +0300881 mbedtls_ecdsa_sign(), mbedtls_ecdsa_verify() and mbedtls_ecdsa_genkey().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000882 * Add support for alternative implementation of ECDH, controlled by the
883 new configuration flags MBEDTLS_ECDH_COMPUTE_SHARED_ALT and
Ron Eldora84c1cb2017-10-10 19:04:27 +0300884 MBEDTLS_ECDH_GEN_PUBLIC_ALT in config.h.
Ron Eldor8b766212017-09-24 15:44:56 +0300885 The following functions from the ECDH module can be replaced
886 with an alternative implementation:
887 mbedtls_ecdh_gen_public() and mbedtls_ecdh_compute_shared().
Hanno Becker087d5ad2018-01-24 16:06:25 +0000888 * Add support for alternative implementation of ECJPAKE, controlled by
889 the new configuration flag MBEDTLS_ECJPAKE_ALT.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000890 * Add mechanism to provide alternative implementation of the DHM module.
Gilles Peskine26182ed2017-09-29 15:45:12 +0200891
Hanno Beckera47023e2017-12-22 17:08:03 +0000892API Changes
893 * Extend RSA interface by multiple functions allowing structure-
894 independent setup and export of RSA contexts. Most notably,
Simon Butcher55fc4e02018-02-05 01:09:13 +0000895 mbedtls_rsa_import() and mbedtls_rsa_complete() are introduced for setting
Hanno Beckera47023e2017-12-22 17:08:03 +0000896 up RSA contexts from partial key material and having them completed to the
897 needs of the implementation automatically. This allows to setup private RSA
898 contexts from keys consisting of N,D,E only, even if P,Q are needed for the
899 purpose or CRT and/or blinding.
900 * The configuration option MBEDTLS_RSA_ALT can be used to define alternative
901 implementations of the RSA interface declared in rsa.h.
Gilles Peskine0a969102018-01-22 14:55:20 +0100902 * The following functions in the message digest modules (MD2, MD4, MD5,
903 SHA1, SHA256, SHA512) have been deprecated and replaced as shown below.
904 The new functions change the return type from void to int to allow
905 returning error codes when using MBEDTLS_<MODULE>_ALT.
906 mbedtls_<MODULE>_starts() -> mbedtls_<MODULE>_starts_ret()
907 mbedtls_<MODULE>_update() -> mbedtls_<MODULE>_update_ret()
908 mbedtls_<MODULE>_finish() -> mbedtls_<MODULE>_finish_ret()
Andres Amaya Garciaf01a6442017-07-03 16:00:59 +0100909 mbedtls_<MODULE>_process() -> mbedtls_internal_<MODULE>_process()
Gilles Peskineb04e2c32017-09-29 15:45:12 +0200910
Ron Eldor73a38172017-10-03 15:58:26 +0300911New deprecations
912 * Deprecate usage of RSA primitives with non-matching key-type
Simon Butcher55fc4e02018-02-05 01:09:13 +0000913 (e.g. signing with a public key).
Andres Amaya Garciaf569f702017-06-28 09:25:10 +0100914 * Direct manipulation of structure fields of RSA contexts is deprecated.
915 Users are advised to use the extended RSA API instead.
Jaeden Amero005239e2018-01-25 14:47:39 +0000916 * Deprecate usage of message digest functions that return void
917 (mbedtls_<MODULE>_starts, mbedtls_<MODULE>_update,
918 mbedtls_<MODULE>_finish and mbedtls_<MODULE>_process where <MODULE> is
919 any of MD2, MD4, MD5, SHA1, SHA256, SHA512) in favor of functions
920 that can return an error code.
Hanno Becker0cd5b942017-10-13 17:17:28 +0100921 * Deprecate untrustworthy DHE parameters from RFC 5114. Superseded by
922 parameters from RFC 3526 or the newly added parameters from RFC 7919.
923 * Deprecate hex string DHE constants MBEDTLS_DHM_RFC3526_MODP_2048_P etc.
924 Supserseded by binary encoded constants MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN
925 etc.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000926 * Deprecate mbedtls_ssl_conf_dh_param() for setting default DHE parameters
927 from hex strings. Superseded by mbedtls_ssl_conf_dh_param_bin()
Hanno Becker0cd5b942017-10-13 17:17:28 +0100928 accepting DHM parameters in binary form, matching the new constants.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100929
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +0100930Bugfix
931 * Fix ssl_parse_record_header() to silently discard invalid DTLS records
932 as recommended in RFC 6347 Section 4.1.2.7.
Simon Butcher2c4f9462017-09-30 23:39:46 +0100933 * Fix memory leak in mbedtls_ssl_set_hostname() when called multiple times.
934 Found by projectgus and jethrogb, #836.
Simon Butcher16373a52017-10-02 19:12:54 +0100935 * Fix usage help in ssl_server2 example. Found and fixed by Bei Lin.
Ron Eldor73a38172017-10-03 15:58:26 +0300936 * Parse signature algorithm extension when renegotiating. Previously,
937 renegotiated handshakes would only accept signatures using SHA-1
938 regardless of the peer's preferences, or fail if SHA-1 was disabled.
Andres Amaya Garcia735b37e2016-11-21 15:38:02 +0000939 * Fix leap year calculation in x509_date_is_valid() to ensure that invalid
940 dates on leap years with 100 and 400 intervals are handled correctly. Found
941 by Nicholas Wilson. #694
Gilles Peskine91048a32017-10-19 17:46:14 +0200942 * Fix some invalid RSA-PSS signatures with keys of size 8N+1 that were
943 accepted. Generating these signatures required the private key.
Gilles Peskinee7707222017-11-24 15:35:50 +0100944 * Fix out-of-memory problem when parsing 4096-bit PKCS8-encrypted RSA keys.
945 Found independently by Florian in the mbed TLS forum and by Mishamax.
946 #878, #1019.
Andres Amaya Garcia79ae0652017-06-27 16:17:54 +0100947 * Fix variable used before assignment compilation warnings with IAR
948 toolchain. Found by gkerrien38.
Andres AG51a7ae12017-02-22 16:23:26 +0000949 * Fix unchecked return codes from AES, DES and 3DES functions in
950 pem_aes_decrypt(), pem_des_decrypt() and pem_des3_decrypt() respectively.
951 If a call to one of the functions of the cryptographic primitive modules
952 failed, the error may not be noticed by the function
953 mbedtls_pem_read_buffer() causing it to return invalid values. Found by
954 Guido Vranken. #756
Gilles Peskine4b117d92017-11-28 17:23:37 +0100955 * Include configuration file in md.h, to fix compilation warnings.
956 Reported by aaronmdjones in #1001
Hanno Becker041a6b02017-09-28 14:52:26 +0100957 * Correct extraction of signature-type from PK instance in X.509 CRT and CSR
958 writing routines that prevented these functions to work with alternative
959 RSA implementations. Raised by J.B. in the Mbed TLS forum. Fixes #1011.
Hanno Becker86e52302017-10-05 09:08:53 +0100960 * Don't print X.509 version tag for v1 CRT's, and omit extensions for
961 non-v3 CRT's.
Gilles Peskined742b742017-11-28 17:40:56 +0100962 * Fix bugs in RSA test suite under MBEDTLS_NO_PLATFORM_ENTROPY. #1023 #1024
Simon Butcher55fc4e02018-02-05 01:09:13 +0000963 * Fix net_would_block() to avoid modification by errno through fcntl() call.
Hanno Beckera6ed9c52017-05-04 13:39:22 +0100964 Found by nkolban. Fixes #845.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000965 * Fix handling of handshake messages in mbedtls_ssl_read() in case
Hanno Becker479e8e22017-10-12 15:39:45 +0100966 MBEDTLS_SSL_RENEGOTIATION is disabled. Found by erja-gp.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000967 * Add a check for invalid private parameters in mbedtls_ecdsa_sign().
Darryl Green36ba8b62017-11-21 09:55:33 +0000968 Reported by Yolan Romailler.
Gilles Peskineff01e002017-12-01 23:42:17 +0100969 * Fix word size check in in pk.c to not depend on MBEDTLS_HAVE_INT64.
Gilles Peskined6294112017-12-01 23:46:58 +0100970 * Fix incorrect unit in benchmark output. #850
Hanno Becker81e96dd2017-09-18 11:07:25 +0100971 * Add size-checks for record and handshake message content, securing
972 fragile yet non-exploitable code-paths.
Ron Eldore1a9a4a2017-10-17 18:15:41 +0300973 * Fix crash when calling mbedtls_ssl_cache_free() twice. Found by
974 MilenkoMitrovic, #1104
Manuel Pégourié-Gonnard54059622018-01-29 10:16:30 +0100975 * Fix mbedtls_timing_alarm(0) on Unix and MinGW.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000976 * Fix use of uninitialized memory in mbedtls_timing_get_timer() when reset=1.
Gilles Peskineec9c6262018-01-02 16:27:50 +0100977 * Fix possible memory leaks in mbedtls_gcm_self_test().
978 * Added missing return code checks in mbedtls_aes_self_test().
Hanno Becker997e2182018-01-10 10:39:20 +0000979 * Fix issues in RSA key generation program programs/x509/rsa_genkey and the
980 RSA test suite where the failure of CTR DRBG initialization lead to
981 freeing an RSA context and several MPI's without proper initialization
982 beforehand.
Gilles Peskine980d2032018-01-22 23:10:53 +0100983 * Fix error message in programs/pkey/gen_key.c. Found and fixed by Chris Xue.
Gilles Peskinecb1e5eb2018-01-23 00:57:34 +0100984 * Fix programs/pkey/dh_server.c so that it actually works with dh_client.c.
985 Found and fixed by Martijn de Milliano.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000986 * Fix an issue in the cipher decryption with the mode
987 MBEDTLS_PADDING_ONE_AND_ZEROS that sometimes accepted invalid padding.
988 Note, this padding mode is not used by the TLS protocol. Found and fixed by
989 Micha Kraus.
Gilles Peskined91f2a22018-01-19 11:25:10 +0100990 * Fix the entropy.c module to not call mbedtls_sha256_starts() or
991 mbedtls_sha512_starts() in the mbedtls_entropy_init() function.
992 * Fix the entropy.c module to ensure that mbedtls_sha256_init() or
993 mbedtls_sha512_init() is called before operating on the relevant context
Gilles Peskine0a969102018-01-22 14:55:20 +0100994 structure. Do not assume that zeroizing a context is a correct way to
995 reset it. Found independently by ccli8 on Github.
996 * In mbedtls_entropy_free(), properly free the message digest context.
Simon Butcher55fc4e02018-02-05 01:09:13 +0000997 * Fix status handshake status message in programs/ssl/dtls_client.c. Found
998 and fixed by muddog.
Hanno Becker86e52302017-10-05 09:08:53 +0100999
1000Changes
Simon Butcher55fc4e02018-02-05 01:09:13 +00001001 * Extend cert_write example program by options to set the certificate version
Hanno Becker86e52302017-10-05 09:08:53 +01001002 and the message digest. Further, allow enabling/disabling of authority
1003 identifier, subject identifier and basic constraints extensions.
Hanno Becker32297e82017-12-22 10:24:32 +00001004 * Only check for necessary RSA structure fields in `mbedtls_rsa_private`. In
1005 particular, don't require P,Q if neither CRT nor blinding are
1006 used. Reported and fix proposed independently by satur9nine and sliai
1007 on GitHub.
Gilles Peskineec9c6262018-01-02 16:27:50 +01001008 * Only run AES-192 self-test if AES-192 is available. Fixes #963.
Gilles Peskine50984002018-01-17 08:01:37 +01001009 * Tighten the RSA PKCS#1 v1.5 signature verification code and remove the
1010 undeclared dependency of the RSA module on the ASN.1 module.
Gilles Peskine0a969102018-01-22 14:55:20 +01001011 * Update all internal usage of deprecated message digest functions to the
1012 new ones with return codes. In particular, this modifies the
1013 mbedtls_md_info_t structure. Propagate errors from these functions
1014 everywhere except some locations in the ssl_tls.c module.
Jaeden Amero791e08a2018-01-26 12:04:12 +00001015 * Improve CTR_DRBG error handling by propagating underlying AES errors.
Gilles Peskine7ecab3d2018-01-26 17:56:38 +01001016 * Add MBEDTLS_ERR_XXX_HW_ACCEL_FAILED error codes for all cryptography
1017 modules where the software implementation can be replaced by a hardware
1018 implementation.
Hanno Becker2a037942017-10-06 12:29:50 +01001019 * Add explicit warnings for the use of MD2, MD4, MD5, SHA-1, DES and ARC4
1020 throughout the library.
Andres Amaya Garcia06fc6652017-06-26 15:19:26 +01001021
Simon Butcher72ea31b2017-08-10 11:51:16 +01001022= mbed TLS 2.6.0 branch released 2017-08-10
Ron Eldord5a75f42016-12-16 16:15:56 +02001023
Simon Butcherb060cc22017-07-28 01:04:34 +01001024Security
Simon Butcher01971d02017-08-10 10:48:01 +01001025 * Fix authentication bypass in SSL/TLS: when authmode is set to optional,
Simon Butcherb060cc22017-07-28 01:04:34 +01001026 mbedtls_ssl_get_verify_result() would incorrectly return 0 when the peer's
1027 X.509 certificate chain had more than MBEDTLS_X509_MAX_INTERMEDIATE_CA
Simon Butcher01971d02017-08-10 10:48:01 +01001028 (default: 8) intermediates, even when it was not trusted. This could be
1029 triggered remotely from either side. (With authmode set to 'required'
Simon Butcher3f2557e2017-08-01 18:06:12 +01001030 (the default), the handshake was correctly aborted).
1031 * Reliably wipe sensitive data after use in the AES example applications
Hanno Becker7ec83df2017-06-27 08:26:53 +01001032 programs/aes/aescrypt2 and programs/aes/crypt_and_hash.
1033 Found by Laurent Simon.
Simon Butcherb060cc22017-07-28 01:04:34 +01001034
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +01001035Features
1036 * Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()
Andres Amaya Garcia052ac862017-07-12 11:27:05 +01001037 and the context struct mbedtls_platform_context to perform
1038 platform-specific setup and teardown operations. The macro
Andres Amaya Garcia586d3772017-07-18 10:24:26 +01001039 MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT allows the functions to be overridden
Simon Butcher3f2557e2017-08-01 18:06:12 +01001040 by the user in a platform_alt.h file. These new functions are required in
Simon Butcher01971d02017-08-10 10:48:01 +01001041 some embedded environments to provide a means of initialising underlying
1042 cryptographic acceleration hardware.
Andres Amaya Garcia63e672b2017-07-07 13:19:13 +01001043
Simon Butcher51e8c3e2017-07-20 12:33:41 +02001044API Changes
1045 * Reverted API/ABI breaking changes introduced in mbed TLS 2.5.1, to make the
1046 API consistent with mbed TLS 2.5.0. Specifically removed the inline
1047 qualifier from the functions mbedtls_aes_decrypt, mbedtls_aes_encrypt,
Simon Butcher3f2557e2017-08-01 18:06:12 +01001048 mbedtls_ssl_ciphersuite_uses_ec and mbedtls_ssl_ciphersuite_uses_psk. Found
1049 by James Cowgill. #978
Simon Butcherb060cc22017-07-28 01:04:34 +01001050 * Certificate verification functions now set flags to -1 in case the full
1051 chain was not verified due to an internal error (including in the verify
1052 callback) or chain length limitations.
Simon Butcher01971d02017-08-10 10:48:01 +01001053 * With authmode set to optional, the TLS handshake is now aborted if the
Simon Butcherb060cc22017-07-28 01:04:34 +01001054 verification of the peer's certificate failed due to an overlong chain or
Simon Butcher01971d02017-08-10 10:48:01 +01001055 a fatal error in the verify callback.
Simon Butcher51e8c3e2017-07-20 12:33:41 +02001056
Ron Eldor5a21fd62016-12-16 16:15:56 +02001057Bugfix
Simon Butcher01971d02017-08-10 10:48:01 +01001058 * Add a check if iv_len is zero in GCM, and return an error if it is zero.
1059 Reported by roberto. #716
1060 * Replace preprocessor condition from #if defined(MBEDTLS_THREADING_PTHREAD)
Ron Eldor8ab05952017-01-09 19:27:59 +02001061 to #if defined(MBEDTLS_THREADING_C) as the library cannot assume they will
Simon Butcher3f2557e2017-08-01 18:06:12 +01001062 always be implemented by pthread support. #696
Simon Butcher01971d02017-08-10 10:48:01 +01001063 * Fix a resource leak on Windows platforms in mbedtls_x509_crt_parse_path(),
1064 in the case of an error. Found by redplait. #590
Ron Eldor7269fee2017-01-12 14:50:50 +02001065 * Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001066 Reported and fix suggested by guidovranken. #740
Andres Amaya Garciaaa27dfe2017-05-04 11:05:55 +01001067 * Fix conditional preprocessor directives in bignum.h to enable 64-bit
1068 compilation when using ARM Compiler 6.
Simon Butcher00d3cc62017-07-26 17:25:55 +01001069 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001070 encoded X.509 CRLs. The overflow could enable maliciously constructed CRLs
Simon Butcher00d3cc62017-07-26 17:25:55 +01001071 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1072 KNOX Security, Samsung Research America
Andres AG2e3ddfa2017-02-17 13:54:43 +00001073 * Fix potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001074 encoded X.509 CSRs. The overflow could enable maliciously constructed CSRs
Andres AG2e3ddfa2017-02-17 13:54:43 +00001075 to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
1076 KNOX Security, Samsung Research America
Simon Butcher00d3cc62017-07-26 17:25:55 +01001077 * Fix a potential integer overflow in the version verification for DER
Simon Butcher3f2557e2017-08-01 18:06:12 +01001078 encoded X.509 certificates. The overflow could enable maliciously
Simon Butcher00d3cc62017-07-26 17:25:55 +01001079 constructed certificates to bypass the certificate verification check.
Simon Butchera418e822017-07-28 23:52:10 +01001080 * Fix a call to the libc function time() to call the platform abstraction
Simon Butcher3f2557e2017-08-01 18:06:12 +01001081 function mbedtls_time() instead. Found by wairua. #666
1082 * Avoid shadowing of time and index functions through mbed TLS function
1083 arguments. Found by inestlerode. #557.
Manuel Pégourié-Gonnardd15795a2017-06-22 12:19:27 +02001084
Janos Follathbfea4a72017-06-22 10:02:07 +01001085Changes
Janos Follath32529402017-06-22 10:02:07 +01001086 * Added config.h option MBEDTLS_NO_UDBL_DIVISION, to prevent the use of
Simon Butcher3f2557e2017-08-01 18:06:12 +01001087 64-bit division. This is useful on embedded platforms where 64-bit division
1088 created a dependency on external libraries. #708
Janos Follathbfea4a72017-06-22 10:02:07 +01001089 * Removed mutexes from ECP hardware accelerator code. Now all hardware
1090 accelerator code in the library leaves concurrency handling to the
1091 platform. Reported by Steven Cooreman. #863
Andres Amaya Garcia92fcfe22017-06-26 12:57:44 +01001092 * Define the macro MBEDTLS_AES_ROM_TABLES in the configuration file
1093 config-no-entropy.h to reduce the RAM footprint.
Simon Butcher3f2557e2017-08-01 18:06:12 +01001094 * Added a test script that can be hooked into git that verifies commits
1095 before they are pushed.
Hanno Becker85b602e2017-05-04 11:27:39 +01001096 * Improve documentation of PKCS1 decryption functions.
Janos Follathbfea4a72017-06-22 10:02:07 +01001097
Simon Butcherf2a597f2017-06-20 23:08:10 +01001098= mbed TLS 2.5.1 released 2017-06-21
Hanno Beckereccf60c2017-06-05 15:19:01 +01001099
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001100Security
Hanno Beckerbf4c2e32017-06-09 11:28:45 +01001101 * Fixed unlimited overread of heap-based buffer in mbedtls_ssl_read().
1102 The issue could only happen client-side with renegotiation enabled.
1103 Could result in DoS (application crash) or information leak
1104 (if the application layer sent data read from mbedtls_ssl_read()
1105 back to the server or to a third party). Can be triggered remotely.
Gilles Peskine5d2511c2017-05-12 13:16:40 +02001106 * Removed SHA-1 and RIPEMD-160 from the default hash algorithms for
1107 certificate verification. SHA-1 can be turned back on with a compile-time
1108 option if needed.
Gilles Peskined50177f2017-05-16 17:53:03 +02001109 * Fixed offset in FALLBACK_SCSV parsing that caused TLS server to fail to
1110 detect it sometimes. Reported by Hugo Leisink. #810
Manuel Pégourié-Gonnardc1380de2017-05-11 12:49:51 +02001111 * Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a
1112 potential Bleichenbacher/BERserk-style attack.
Gilles Peskine5e79cb32017-05-04 16:17:21 +02001113
Hanno Beckereccf60c2017-06-05 15:19:01 +01001114Bugfix
Janos Follath5a1c0e72017-06-16 09:00:07 +01001115 * Remove size zero arrays from ECJPAKE test suite. Size zero arrays are not
1116 valid C and they prevented the test from compiling in Visual Studio 2015
1117 and with GCC using the -Wpedantic compilation option.
Hanno Becker7e5437a2017-04-28 17:15:26 +01001118 * Fix insufficient support for signature-hash-algorithm extension,
1119 resulting in compatibility problems with Chrome. Found by hfloyrd. #823
Janos Follath5a1c0e72017-06-16 09:00:07 +01001120 * Fix behaviour that hid the original cause of fatal alerts in some cases
1121 when sending the alert failed. The fix makes sure not to hide the error
Gilles Peskine3df98f52017-05-10 17:47:40 +02001122 that triggered the alert.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001123 * Fix SSLv3 renegotiation behaviour and stop processing data received from
1124 peer after sending a fatal alert to refuse a renegotiation attempt.
1125 Previous behaviour was to keep processing data even after the alert has
1126 been sent.
Hanno Becker39ae8cd2017-05-08 16:31:14 +01001127 * Accept empty trusted CA chain in authentication mode
1128 MBEDTLS_SSL_VERIFY_OPTIONAL.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001129 Found by jethrogb. #864
1130 * Fix implementation of mbedtls_ssl_parse_certificate() to not annihilate
1131 fatal errors in authentication mode MBEDTLS_SSL_VERIFY_OPTIONAL and to
1132 reflect bad EC curves within verification result.
1133 * Fix bug that caused the modular inversion function to accept the invalid
1134 modulus 1 and therefore to hang. Found by blaufish. #641.
1135 * Fix incorrect sign computation in modular exponentiation when the base is
1136 a negative MPI. Previously the result was always negative. Found by Guido
1137 Vranken.
1138 * Fix a numerical underflow leading to stack overflow in mpi_read_file()
1139 that was triggered uppon reading an empty line. Found by Guido Vranken.
Gilles Peskine3df98f52017-05-10 17:47:40 +02001140
Gilles Peskine36091fe2017-05-03 16:55:03 +02001141Changes
Janos Follath5a1c0e72017-06-16 09:00:07 +01001142 * Send fatal alerts in more cases. The previous behaviour was to skip
1143 sending the fatal alert and just drop the connection.
Janos Follath0a5154b2017-03-10 11:31:41 +00001144 * Clarify ECDSA documentation and improve the sample code to avoid
Janos Follath5a1c0e72017-06-16 09:00:07 +01001145 misunderstanding and potentially dangerous use of the API. Pointed out
Janos Follath0a5154b2017-03-10 11:31:41 +00001146 by Jean-Philippe Aumasson.
Gilles Peskine36091fe2017-05-03 16:55:03 +02001147
Simon Butcher9f770172017-05-15 15:13:59 +01001148= mbed TLS 2.5.0 branch released 2017-05-17
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001149
Janos Follath45182a02017-03-23 10:41:56 +00001150Security
Gilles Peskine4a7f6a02017-03-23 14:37:37 +01001151 * Wipe stack buffers in RSA private key operations
Janos Follath5a1c0e72017-06-16 09:00:07 +01001152 (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt). Found by Laurent
1153 Simon.
Janos Follath45182a02017-03-23 10:41:56 +00001154 * Add exponent blinding to RSA private operations as a countermeasure
1155 against side-channel attacks like the cache attack described in
1156 https://arxiv.org/abs/1702.08719v2.
1157 Found and fix proposed by Michael Schwarz, Samuel Weiser, Daniel Gruss,
1158 Clémentine Maurice and Stefan Mangard.
1159
Simon Butcher4775e832017-05-13 22:56:08 +01001160Features
Janos Follath5a1c0e72017-06-16 09:00:07 +01001161 * Add hardware acceleration support for the Elliptic Curve Point module.
1162 This involved exposing parts of the internal interface to enable
1163 replacing the core functions and adding and alternative, module level
1164 replacement support for enabling the extension of the interface.
Janos Follath7a8a0902017-04-10 16:13:06 +01001165 * Add a new configuration option to 'mbedtls_ssl_config' to enable
1166 suppressing the CA list in Certificate Request messages. The default
1167 behaviour has not changed, namely every configured CAs name is included.
1168
Andres AGf5bf7182017-03-03 14:09:56 +00001169API Changes
1170 * The following functions in the AES module have been deprecated and replaced
1171 by the functions shown below. The new functions change the return type from
1172 void to int to allow returning error codes when using MBEDTLS_AES_ALT,
1173 MBEDTLS_AES_DECRYPT_ALT or MBEDTLS_AES_ENCRYPT_ALT.
1174 mbedtls_aes_decrypt() -> mbedtls_internal_aes_decrypt()
1175 mbedtls_aes_encrypt() -> mbedtls_internal_aes_encrypt()
1176
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001177Bugfix
1178 * Remove macros from compat-1.3.h that correspond to deleted items from most
1179 recent versions of the library. Found by Kyle Keen.
Janos Follath5a1c0e72017-06-16 09:00:07 +01001180 * Fixed issue in the Threading module that prevented mutexes from
1181 initialising. Found by sznaider. #667 #843
1182 * Add checks in the PK module for the RSA functions on 64-bit systems.
1183 The PK and RSA modules use different types for passing hash length and
1184 without these checks the type cast could lead to data loss. Found by Guido
1185 Vranken.
Andres Amaya Garcia75fdf632017-05-02 16:01:20 +01001186
Simon Butcherb65c2be2017-03-10 18:50:44 +00001187= mbed TLS 2.4.2 branch released 2017-03-08
Andres AG703990b2016-10-24 11:23:36 +01001188
Janos Follath182013f2016-10-25 10:50:22 +01001189Security
Simon Butcherb65c2be2017-03-10 18:50:44 +00001190 * Add checks to prevent signature forgeries for very large messages while
1191 using RSA through the PK module in 64-bit systems. The issue was caused by
1192 some data loss when casting a size_t to an unsigned int value in the
1193 functions rsa_verify_wrap(), rsa_sign_wrap(), rsa_alt_sign_wrap() and
1194 mbedtls_pk_sign(). Found by Jean-Philippe Aumasson.
Andres AG939954c2016-12-08 17:08:44 +00001195 * Fixed potential livelock during the parsing of a CRL in PEM format in
1196 mbedtls_x509_crl_parse(). A string containing a CRL followed by trailing
1197 characters after the footer could result in the execution of an infinite
1198 loop. The issue can be triggered remotely. Found by Greg Zaverucha,
1199 Microsoft.
Janos Follath182013f2016-10-25 10:50:22 +01001200 * Removed MD5 from the allowed hash algorithms for CertificateRequest and
1201 CertificateVerify messages, to prevent SLOTH attacks against TLS 1.2.
Simon Butcher0621b1f2017-02-05 16:48:47 +00001202 Introduced by interoperability fix for #513.
Janos Follath7dadc2f2017-01-27 16:05:20 +00001203 * Fixed a bug that caused freeing a buffer that was allocated on the stack,
1204 when verifying the validity of a key on secp224k1. This could be
1205 triggered remotely for example with a maliciously constructed certificate
Simon Butcher71e9d582017-02-28 18:47:27 +00001206 and potentially could lead to remote code execution on some platforms.
Simon Butcher8b987502017-03-07 12:37:14 +00001207 Reported independently by rongsaws and Aleksandar Nikolic, Cisco Talos
1208 team. #569 CVE-2017-2784
Janos Follath7dadc2f2017-01-27 16:05:20 +00001209
Andres AG703990b2016-10-24 11:23:36 +01001210Bugfix
Andres AGd1650662016-12-09 17:26:23 +00001211 * Fix output certificate verification flags set by x509_crt_verify_top() when
1212 traversing a chain of trusted CA. The issue would cause both flags,
1213 MBEDTLS_X509_BADCERT_NOT_TRUSTED and MBEDTLS_X509_BADCERT_EXPIRED, to be
1214 set when the verification conditions are not met regardless of the cause.
1215 Found by Harm Verhagen and inestlerode. #665 #561
Simon Butcherd57c8f02017-02-02 13:08:37 +00001216 * Fix the redefinition of macro ssl_set_bio to an undefined symbol
1217 mbedtls_ssl_set_bio_timeout in compat-1.3.h, by removing it.
1218 Found by omlib-lin. #673
Andres AGc0db5112016-12-07 15:05:53 +00001219 * Fix unused variable/function compilation warnings in pem.c, x509_crt.c and
1220 x509_csr.c that are reported when building mbed TLS with a config.h that
Simon Butchera333b3c2017-02-02 16:17:37 +00001221 does not define MBEDTLS_PEM_PARSE_C. Found by omnium21. #562
Andres AG2196c7f2016-12-15 17:01:16 +00001222 * Fix incorrect renegotiation condition in ssl_check_ctr_renegotiate() that
1223 would compare 64 bits of the record counter instead of 48 bits as indicated
1224 in RFC 6347 Section 4.3.1. This could cause the execution of the
1225 renegotiation routines at unexpected times when the protocol is DTLS. Found
1226 by wariua. #687
Andres AG703990b2016-10-24 11:23:36 +01001227 * Fixed multiple buffer overreads in mbedtls_pem_read_buffer() when parsing
Andres AG9c94b692016-10-24 14:31:54 +01001228 the input string in PEM format to extract the different components. Found
Andres AG703990b2016-10-24 11:23:36 +01001229 by Eyal Itkin.
Andres Amaya Garcia6a543362017-01-17 23:04:22 +00001230 * Fixed potential arithmetic overflow in mbedtls_ctr_drbg_reseed() that could
1231 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1232 * Fixed potential arithmetic overflows in mbedtls_cipher_update() that could
1233 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
1234 * Fixed potential arithmetic overflow in mbedtls_md2_update() that could
1235 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Andres AG4623d832017-01-18 17:21:03 +00001236 * Fixed potential arithmetic overflow in mbedtls_base64_decode() that could
1237 cause buffer bound checks to be bypassed. Found by Eyal Itkin.
Janos Follath87c98072017-02-03 12:36:59 +00001238 * Fixed heap overreads in mbedtls_x509_get_time(). Found by Peng
1239 Li/Yueh-Hsun Lin, KNOX Security, Samsung Research America.
Andres AG5708dcb2016-12-08 17:19:21 +00001240 * Fix potential memory leak in mbedtls_x509_crl_parse(). The leak was caused
1241 by missing calls to mbedtls_pem_free() in cases when a
Simon Butcherd02dc142017-02-28 16:36:22 +00001242 MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT error was encountered. Found and
1243 fix proposed by Guido Vranken. #722
Simon Butcher956c58f2017-03-02 09:18:09 +00001244 * Fixed the templates used to generate project and solution files for Visual
1245 Studio 2015 as well as the files themselves, to remove a build warning
1246 generated in Visual Studio 2015. Reported by Steve Valliere. #742
Ron Eldor12e0b802017-01-29 18:51:35 +02001247 * Fix a resource leak in ssl_cookie, when using MBEDTLS_THREADING_C.
1248 Raised and fix suggested by Alan Gillingham in the mbed TLS forum. #771
Andres AGd1cc7f62017-01-06 13:17:35 +00001249 * Fix 1 byte buffer overflow in mbedtls_mpi_write_string() when the MPI
1250 number to write in hexadecimal is negative and requires an odd number of
1251 digits. Found and fixed by Guido Vranken.
Simon Butcher81cf88f2017-03-07 19:35:49 +00001252 * Fix unlisted DES configuration dependency in some pkparse test cases. Found
1253 by inestlerode. #555
Andres AG703990b2016-10-24 11:23:36 +01001254
Janos Follath4c006cd2016-12-13 14:14:03 +00001255= mbed TLS 2.4.1 branch released 2016-12-13
Janos Follath5da3a6f2016-12-13 11:51:04 +00001256
1257Changes
1258 * Update to CMAC test data, taken from - NIST Special Publication 800-38B -
1259 Recommendation for Block Cipher Modes of Operation: The CMAC Mode for
1260 Authentication – October 2016
1261
Simon Butcher19dbd412016-10-16 19:35:49 +01001262= mbed TLS 2.4.0 branch released 2016-10-17
Simon Butchercf8c1f42016-09-02 21:29:39 +03001263
Andres AG60dbc932016-09-02 15:23:48 +01001264Security
Simon Butcheref8fa012016-10-16 00:44:08 +01001265 * Removed the MBEDTLS_SSL_AEAD_RANDOM_IV option, because it was not compliant
1266 with RFC-5116 and could lead to session key recovery in very long TLS
1267 sessions. "Nonce-Disrespecting Adversaries Practical Forgery Attacks on GCM in
1268 TLS" - H. Bock, A. Zauner, S. Devlin, J. Somorovsky, P. Jovanovic.
1269 https://eprint.iacr.org/2016/475.pdf
1270 * Fixed potential stack corruption in mbedtls_x509write_crt_der() and
Andres AG60dbc932016-09-02 15:23:48 +01001271 mbedtls_x509write_csr_der() when the signature is copied to the buffer
Andres AGe0af9952016-09-07 11:09:44 +01001272 without checking whether there is enough space in the destination. The
Simon Butcheref8fa012016-10-16 00:44:08 +01001273 issue cannot be triggered remotely. Found by Jethro Beekman.
Andres AG60dbc932016-09-02 15:23:48 +01001274
Simon Butchercf8c1f42016-09-02 21:29:39 +03001275Features
Simon Butcher21c54812016-10-05 14:17:37 +01001276 * Added support for CMAC for AES and 3DES and AES-CMAC-PRF-128, as defined by
1277 NIST SP 800-38B, RFC-4493 and RFC-4615.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001278 * Added hardware entropy selftest to verify that the hardware entropy source
1279 is functioning correctly.
1280 * Added a script to print build environment info for diagnostic use in test
1281 scripts, which is also now called by all.sh.
Andres AGf9113192016-09-02 14:06:04 +01001282 * Added the macro MBEDTLS_X509_MAX_FILE_PATH_LEN that enables the user to
1283 configure the maximum length of a file path that can be buffered when
1284 calling mbedtls_x509_crt_parse_path().
Simon Butcheref8fa012016-10-16 00:44:08 +01001285 * Added a configuration file config-no-entropy.h that configures the subset of
Andres AGf84f8922016-09-19 15:33:30 +01001286 library features that do not require an entropy source.
Andres AG7abc9742016-09-23 17:58:49 +01001287 * Added the macro MBEDTLS_ENTROPY_MIN_HARDWARE in config.h. This allows users
1288 to configure the minimum number of bytes for entropy sources using the
1289 mbedtls_hardware_poll() function.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001290
1291Bugfix
1292 * Fix for platform time abstraction to avoid dependency issues where a build
1293 may need time but not the standard C library abstraction, and added
1294 configuration consistency checks to check_config.h
1295 * Fix dependency issue in Makefile to allow parallel builds.
Simon Butcheref8fa012016-10-16 00:44:08 +01001296 * Fix incorrect handling of block lengths in crypt_and_hash.c sample program,
1297 when GCM is used. Found by udf2457. #441
Simon Butchercad6e932016-09-05 01:46:59 +03001298 * Fix for key exchanges based on ECDH-RSA or ECDH-ECDSA which weren't
1299 enabled unless others were also present. Found by David Fernandez. #428
Simon Butcherc0d76b82016-09-07 17:25:16 +03001300 * Fix for out-of-tree builds using CMake. Found by jwurzer, and fix based on
1301 a contribution from Tobias Tangemann. #541
Simon Butcheref8fa012016-10-16 00:44:08 +01001302 * Fixed cert_app.c sample program for debug output and for use when no root
Simon Butcherd43fb952016-09-26 20:48:56 +01001303 certificates are provided.
Andres AG776a6fc2016-09-26 09:52:41 +01001304 * Fix conditional statement that would cause a 1 byte overread in
Simon Butcher3a5e0702016-10-12 16:37:59 +01001305 mbedtls_asn1_get_int(). Found and fixed by Guido Vranken. #599
Simon Butcher851ae292016-10-11 10:13:52 +01001306 * Fixed pthread implementation to avoid unintended double initialisations
Simon Butcheref8fa012016-10-16 00:44:08 +01001307 and double frees. Found by Niklas Amnebratt.
Simon Butcherf77309c2016-10-07 15:56:07 +01001308 * Fixed the sample applications gen_key.c, cert_req.c and cert_write.c for
1309 builds where the configuration MBEDTLS_PEM_WRITE_C is not defined. Found
1310 by inestlerode. #559.
Andres AG4bdbe092016-09-19 16:58:45 +01001311 * Fix mbedtls_x509_get_sig() to update the ASN1 type in the mbedtls_x509_buf
1312 data structure until after error checks are successful. Found by
Simon Butcherb81496b2016-10-13 14:03:37 +01001313 subramanyam-c. #622
Andres AG821da842016-09-26 10:09:30 +01001314 * Fix documentation and implementation missmatch for function arguments of
Simon Butcherf6e3b9e2016-10-12 19:47:29 +01001315 mbedtls_gcm_finish(). Found by cmiatpaar. #602
Simon Butcher4d69ecd2016-10-13 00:14:37 +01001316 * Guarantee that P>Q at RSA key generation. Found by inestlerode. #558
Andres AG5a87c932016-09-26 14:53:05 +01001317 * Fix potential byte overread when verifying malformed SERVER_HELLO in
1318 ssl_parse_hello_verify_request() for DTLS. Found by Guido Vranken.
Andres AG4b76aec2016-09-23 13:16:02 +01001319 * Fix check for validity of date when parsing in mbedtls_x509_get_time().
Simon Butcher2bd0fba2016-10-13 16:29:56 +01001320 Found by subramanyam-c. #626
Simon Butcher99000142016-10-13 17:21:01 +01001321 * Fix compatibility issue with Internet Explorer client authentication,
1322 where the limited hash choices prevented the client from sending its
1323 certificate. Found by teumas. #513
Janos Follath240f1852016-10-14 15:23:21 +01001324 * Fix compilation without MBEDTLS_SELF_TEST enabled.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001325
1326Changes
1327 * Extended test coverage of special cases, and added new timing test suite.
1328 * Removed self-tests from the basic-built-test.sh script, and added all
1329 missing self-tests to the test suites, to ensure self-tests are only
1330 executed once.
1331 * Added support for 3 and 4 byte lengths to mbedtls_asn1_write_len().
1332 * Added support for a Yotta specific configuration file -
1333 through the symbol YOTTA_CFG_MBEDTLS_TARGET_CONFIG_FILE.
Simon Butcher5908bcc2016-09-04 15:12:09 +01001334 * Added optimization for code space for X.509/OID based on configured
Simon Butcheref8fa012016-10-16 00:44:08 +01001335 features. Contributed by Aviv Palivoda.
Andres AG788aa4a2016-09-14 14:32:09 +01001336 * Renamed source file library/net.c to library/net_sockets.c to avoid
1337 naming collision in projects which also have files with the common name
1338 net.c. For consistency, the corresponding header file, net.h, is marked as
1339 deprecated, and its contents moved to net_sockets.h.
Simon Butcher59bffa22016-10-13 15:55:56 +01001340 * Changed the strategy for X.509 certificate parsing and validation, to no
1341 longer disregard certificates with unrecognised fields.
Simon Butchercf8c1f42016-09-02 21:29:39 +03001342
Simon Butcher46125fb2016-06-27 19:43:55 +01001343= mbed TLS 2.3.0 branch released 2016-06-28
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001344
Janos Follathcc4eba72016-02-10 16:25:55 +00001345Security
Janos Follathe43b81a2016-02-10 16:25:55 +00001346 * Fix missing padding length check in mbedtls_rsa_rsaes_pkcs1_v15_decrypt
Janos Follath3218b212016-02-10 16:14:10 +00001347 required by PKCS1 v2.2
Janos Follathe43b81a2016-02-10 16:25:55 +00001348 * Fix potential integer overflow to buffer overflow in
1349 mbedtls_rsa_rsaes_pkcs1_v15_encrypt and mbedtls_rsa_rsaes_oaep_encrypt
Manuel Pégourié-Gonnard8ddc93f2016-02-11 10:35:13 +01001350 (not triggerable remotely in (D)TLS).
Hanno Becker01a0e072017-07-26 11:49:40 +01001351 * Fix a potential integer underflow to buffer overread in
Janos Follathbc247c92016-02-11 11:15:44 +00001352 mbedtls_rsa_rsaes_oaep_decrypt. It is not triggerable remotely in
1353 SSL/TLS.
Janos Follathcc4eba72016-02-10 16:25:55 +00001354
Simon Butcher3fe6cd32016-04-26 19:51:29 +01001355Features
1356 * Support for platform abstraction of the standard C library time()
1357 function.
1358
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001359Bugfix
1360 * Fix bug in mbedtls_mpi_add_mpi() that caused wrong results when the three
1361 arguments where the same (in-place doubling). Found and fixed by Janos
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001362 Follath. #309
Manuel Pégourié-Gonnardc9901892016-01-12 13:59:39 +00001363 * Fix potential build failures related to the 'apidoc' target, introduced
1364 in the previous patch release. Found by Robert Scheck. #390 #391
Manuel Pégourié-Gonnard35519012016-01-07 13:06:51 +01001365 * Fix issue in Makefile that prevented building using armar. #386
Antonin Décimo8fd91562019-01-23 15:24:37 +01001366 * Fix memory leak that occurred only when ECJPAKE was enabled and ECDHE and
Janos Follath4ae5c292016-02-10 11:27:43 +00001367 ECDSA was disabled in config.h . The leak didn't occur by default.
Simon Butcherf59e66b2016-03-01 20:26:16 +00001368 * Fix an issue that caused valid certificates to be rejected whenever an
1369 expired or not yet valid certificate was parsed before a valid certificate
1370 in the trusted certificate list.
Hanno Becker01a0e072017-07-26 11:49:40 +01001371 * Fix bug in mbedtls_x509_crt_parse that caused trailing extra data in the
Janos Follathcc0e49d2016-02-17 14:34:12 +00001372 buffer after DER certificates to be included in the raw representation.
Simon Butcher3f5c8752016-04-15 19:06:59 +01001373 * Fix issue that caused a hang when generating RSA keys of odd bitlength
Janos Follath1ed9f992016-03-18 11:45:44 +00001374 * Fix bug in mbedtls_rsa_rsaes_pkcs1_v15_encrypt that made null pointer
1375 dereference possible.
Janos Follath8a317052016-04-21 23:37:09 +01001376 * Fix issue that caused a crash if invalid curves were passed to
1377 mbedtls_ssl_conf_curves. #373
Simon Butcherf8935072016-04-29 00:05:32 +01001378 * Fix issue in ssl_fork_server which was preventing it from functioning. #429
Paul Bakker8f0e4c22016-05-12 16:38:27 +01001379 * Fix memory leaks in test framework
Paul Bakkerf8e37942016-05-13 10:50:41 +01001380 * Fix test in ssl-opt.sh that does not run properly with valgrind
Simon Butcher46125fb2016-06-27 19:43:55 +01001381 * Fix unchecked calls to mmbedtls_md_setup(). Fix by Brian Murray. #502
Manuel Pégourié-Gonnardafbb3102016-01-07 13:26:11 +01001382
Manuel Pégourié-Gonnard25caaf32016-01-08 14:29:11 +01001383Changes
1384 * On ARM platforms, when compiling with -O0 with GCC, Clang or armcc5,
1385 don't use the optimized assembly for bignum multiplication. This removes
1386 the need to pass -fomit-frame-pointer to avoid a build error with -O0.
Simon Butcherd7e9ad72016-04-25 16:07:12 +01001387 * Disabled SSLv3 in the default configuration.
Simon Butchera543d112016-04-26 12:51:37 +01001388 * Optimized mbedtls_mpi_zeroize() for MPI integer size. (Fix by Alexey
1389 Skalozub).
Janos Follathc6dab2b2016-05-23 14:27:02 +01001390 * Fix non-compliance server extension handling. Extensions for SSLv3 are now
1391 ignored, as required by RFC6101.
Manuel Pégourié-Gonnardf92c86e2016-01-07 13:18:01 +01001392
1393= mbed TLS 2.2.1 released 2016-01-05
1394
1395Security
Manuel Pégourié-Gonnard97b52092015-12-10 10:50:51 +01001396 * Fix potential double free when mbedtls_asn1_store_named_data() fails to
Manuel Pégourié-Gonnard1e075622015-12-10 14:46:25 +01001397 allocate memory. Only used for certificate generation, not triggerable
Simon Butcher00923c12015-12-22 19:04:24 +00001398 remotely in SSL/TLS. Found by Rafał Przywara. #367
Manuel Pégourié-Gonnardf4569b12015-11-19 09:23:06 +01001399 * Disable MD5 handshake signatures in TLS 1.2 by default to prevent the
1400 SLOTH attack on TLS 1.2 server authentication (other attacks from the
1401 SLOTH paper do not apply to any version of mbed TLS or PolarSSL).
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001402 https://www.mitls.org/pages/attacks/SLOTH
Simon Butcher1285ab52016-01-01 21:42:47 +00001403
Manuel Pégourié-Gonnard7f88b8e2016-01-04 17:36:44 +01001404Bugfix
1405 * Fix over-restrictive length limit in GCM. Found by Andreas-N. #362
1406 * Fix bug in certificate validation that caused valid chains to be rejected
1407 when the first intermediate certificate has pathLenConstraint=0. Found by
1408 Nicholas Wilson. Introduced in mbed TLS 2.2.0. #280
Simon Butcher207990d2015-12-16 01:51:30 +00001409 * Removed potential leak in mbedtls_rsa_rsassa_pkcs1_v15_sign(), found by
Simon Butcher8254ed22015-11-04 11:04:00 +00001410 JayaraghavendranK. #372
Simon Butcher04799a42015-09-29 00:31:09 +01001411 * Fix suboptimal handling of unexpected records that caused interop issues
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001412 with some peers over unreliable links. Avoid dropping an entire DTLS
Manuel Pégourié-Gonnard173c7902015-10-20 19:56:45 +02001413 datagram if a single record in a datagram is unexpected, instead only
1414 drop the record and look at subsequent records (if any are present) in
1415 the same datagram. Found by jeannotlapin. #345
Manuel Pégourié-Gonnard261faed2015-10-21 10:16:29 +02001416
1417= mbed TLS 2.2.0 released 2015-11-04
Simon Butcher59a8fa72015-11-03 23:09:28 +00001418
Manuel Pégourié-Gonnard22c3b7b2015-10-21 12:07:47 +02001419Security
1420 * Fix potential double free if mbedtls_ssl_conf_psk() is called more than
1421 once and some allocation fails. Cannot be forced remotely. Found by Guido
Simon Butcher59a8fa72015-11-03 23:09:28 +00001422 Vranken, Intelworks.
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001423 * Fix potential heap corruption on Windows when
1424 mbedtls_x509_crt_parse_path() is passed a path longer than 2GB. Cannot be
1425 triggered remotely. Found by Guido Vranken, Intelworks.
1426 * Fix potential buffer overflow in some asn1_write_xxx() functions.
Manuel Pégourié-Gonnard1ef96c22015-10-20 15:04:57 +02001427 Cannot be triggered remotely unless you create X.509 certificates based
1428 on untrusted input or write keys of untrusted origin. Found by Guido
1429 Vranken, Intelworks.
1430 * The X509 max_pathlen constraint was not enforced on intermediate
1431 certificates. Found by Nicholas Wilson, fix and tests provided by
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001432 Janos Follath. #280 and #319
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001433
Manuel Pégourié-Gonnard2b624e92015-10-30 09:35:03 +01001434Features
1435 * Experimental support for EC J-PAKE as defined in Thread 1.0.0.
1436 Disabled by default as the specification might still change.
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001437 * Added a key extraction callback to accees the master secret and key
1438 block. (Potential uses include EAP-TLS and Thread.)
Manuel Pégourié-Gonnarde5f30722015-10-22 17:01:15 +02001439
1440Bugfix
Simon Butcher62aab152015-10-27 16:05:34 +00001441 * Self-signed certificates were not excluded from pathlen counting,
1442 resulting in some valid X.509 being incorrectly rejected. Found and fix
Manuel Pégourié-Gonnard65eefc82015-10-23 14:08:48 +02001443 provided by Janos Follath. #319
1444 * Fix build error with configurations where ECDHE-PSK is the only key
1445 exchange. Found and fix provided by Chris Hammond. #270
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001446 * Fix build error with configurations where RSA, RSA-PSK, ECDH-RSA or
Manuel Pégourié-Gonnard7c5fcdc2015-10-21 14:52:24 +02001447 ECHD-ECDSA if the only key exchange. Multiple reports. #310
1448 * Fixed a bug causing some handshakes to fail due to some non-fatal alerts
Manuel Pégourié-Gonnard66fc0732015-10-21 16:40:29 +02001449 not being properly ignored. Found by mancha and Kasom Koht-arsa, #308
Manuel Pégourié-Gonnardc99dffa2015-11-02 06:00:02 +09001450 * mbedtls_x509_crt_verify(_with_profile)() now also checks the key type and
1451 size/curve against the profile. Before that, there was no way to set a
1452 minimum key size for end-entity certificates with RSA keys. Found by
Simon Butcher5f7c34b2015-10-27 15:14:55 +00001453 Matthew Page of Scannex Electronics Ltd.
Manuel Pégourié-Gonnarde0b2fea2015-10-27 10:24:54 +01001454 * Fix failures in MPI on Sparc(64) due to use of bad assembly code.
1455 Found by Kurt Danielson. #292
1456 * Fix typo in name of the extKeyUsage OID. Found by inestlerode, #314
Manuel Pégourié-Gonnard41048642015-10-09 14:47:17 +01001457 * Fix bug in ASN.1 encoding of booleans that caused generated CA
1458 certificates to be rejected by some applications, including OS X
1459 Keychain. Found and fixed by Jonathan Leroy, Inikup.
Simon Butcher04799a42015-09-29 00:31:09 +01001460
Manuel Pégourié-Gonnardca056c72015-10-05 18:21:34 +01001461Changes
Simon Butcherc48b66b2015-10-05 10:18:17 +01001462 * Improved performance of mbedtls_ecp_muladd() when one of the scalars is 1
1463 or -1.
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001464
1465= mbed TLS 2.1.2 released 2015-10-06
Simon Butcherc48b66b2015-10-05 10:18:17 +01001466
1467Security
Manuel Pégourié-Gonnardd02a1da2015-09-28 18:34:48 +02001468 * Added fix for CVE-2015-5291 to prevent heap corruption due to buffer
1469 overflow of the hostname or session ticket. Found by Guido Vranken,
Simon Butcherc48b66b2015-10-05 10:18:17 +01001470 Intelworks.
Manuel Pégourié-Gonnard58fb4952015-09-28 13:48:04 +02001471 * Fix potential double-free if mbedtls_ssl_set_hs_psk() is called more than
Simon Butcherc48b66b2015-10-05 10:18:17 +01001472 once in the same handhake and mbedtls_ssl_conf_psk() was used.
1473 Found and patch provided by Guido Vranken, Intelworks. Cannot be forced
1474 remotely.
1475 * Fix stack buffer overflow in pkcs12 decryption (used by
Simon Butchera45aa132015-10-05 00:26:36 +01001476 mbedtls_pk_parse_key(file)() when the password is > 129 bytes.
Simon Butcherc48b66b2015-10-05 10:18:17 +01001477 Found by Guido Vranken, Intelworks. Not triggerable remotely.
1478 * Fix potential buffer overflow in mbedtls_mpi_read_string().
1479 Found by Guido Vranken, Intelworks. Not exploitable remotely in the context
1480 of TLS, but might be in other uses. On 32 bit machines, requires reading a
1481 string of close to or larger than 1GB to exploit; on 64 bit machines, would
1482 require reading a string of close to or larger than 2^62 bytes.
Manuel Pégourié-Gonnard24417f02015-09-28 18:09:45 +02001483 * Fix potential random memory allocation in mbedtls_pem_read_buffer()
Simon Butcherfec73a82015-10-05 10:40:31 +01001484 on crafted PEM input data. Found and fix provided by Guido Vranken,
1485 Intelworks. Not triggerable remotely in TLS. Triggerable remotely if you
Manuel Pégourié-Gonnardbc1babb2015-10-02 11:16:47 +02001486 accept PEM data from an untrusted source.
1487 * Fix possible heap buffer overflow in base64_encoded() when the input
1488 buffer is 512MB or larger on 32-bit platforms. Found by Guido Vranken,
Simon Butcher475cf0a2015-10-05 11:57:54 +01001489 Intelworks. Not trigerrable remotely in TLS.
Simon Butcher04799a42015-09-29 00:31:09 +01001490 * Fix potential double-free if mbedtls_conf_psk() is called repeatedly on
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001491 the same mbedtls_ssl_config object and memory allocation fails. Found by
1492 Guido Vranken, Intelworks. Cannot be forced remotely.
1493 * Fix potential heap buffer overflow in servers that perform client
Simon Butcher7776fc32015-10-05 15:44:18 +01001494 authentication against a crafted CA cert. Cannot be triggered remotely
Manuel Pégourié-Gonnard04317352015-10-05 12:16:06 +01001495 unless you allow third parties to pick trust CAs for client auth.
Simon Butcher04799a42015-09-29 00:31:09 +01001496 Found by Guido Vranken, Intelworks.
1497
1498Bugfix
Simon Butchera12e3c02015-10-01 01:59:33 +01001499 * Fix compile error in net.c with musl libc. Found and patch provided by
1500 zhasha (#278).
Simon Butcher04799a42015-09-29 00:31:09 +01001501 * Fix macroization of 'inline' keyword when building as C++. (#279)
Simon Butcher5624ec82015-09-29 01:06:06 +01001502
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001503Changes
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001504 * Added checking of hostname length in mbedtls_ssl_set_hostname() to ensure
1505 domain names are compliant with RFC 1035.
1506 * Fixed paths for check_config.h in example config files. (Found by bachp)
1507 (#291)
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001508
1509= mbed TLS 2.1.1 released 2015-09-17
Simon Butcher5b8d1d62015-10-04 22:06:51 +01001510
1511Security
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001512 * Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
Simon Butchera1a11282015-09-14 21:30:40 +01001513 signatures. (Found by Florian Weimer, Red Hat.)
1514 https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/
Manuel Pégourié-Gonnardf7022d12015-09-16 11:32:18 +02001515 * Fix possible client-side NULL pointer dereference (read) when the client
1516 tries to continue the handshake after it failed (a misuse of the API).
1517 (Found and patch provided by Fabian Foerg, Gotham Digital Science using
Simon Butcherd69f14b2015-09-11 20:00:20 +01001518 afl-fuzz.)
1519
1520Bugfix
Manuel Pégourié-Gonnard14c25742015-09-08 15:12:45 +02001521 * Fix warning when using a 64bit platform. (found by embedthis) (#275)
1522 * Fix off-by-one error in parsing Supported Point Format extension that
1523 caused some handshakes to fail.
1524
1525Changes
1526 * Made X509 profile pointer const in mbedtls_ssl_conf_cert_profile() to allow
1527 use of mbedtls_x509_crt_profile_next. (found by NWilson)
Simon Butcherd69f14b2015-09-11 20:00:20 +01001528 * When a client initiates a reconnect from the same port as a live
Manuel Pégourié-Gonnardc2ed8022015-09-09 12:15:13 +02001529 connection, if cookie verification is available
Manuel Pégourié-Gonnard5f501042015-09-03 20:03:15 +02001530 (MBEDTLS_SSL_DTLS_HELLO_VERIFY defined in config.h, and usable cookie
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001531 callbacks set with mbedtls_ssl_conf_dtls_cookies()), this will be
Manuel Pégourié-Gonnard0a0c22e2015-09-04 14:38:26 +02001532 detected and mbedtls_ssl_read() will return
1533 MBEDTLS_ERR_SSL_CLIENT_RECONNECT - it is then possible to start a new
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001534 handshake with the same context. (See RFC 6347 section 4.2.8.)
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001535
1536= mbed TLS 2.1.0 released 2015-09-04
Manuel Pégourié-Gonnardbcb04602015-07-19 16:00:04 +02001537
1538Features
Manuel Pégourié-Gonnarda6e5bd52015-07-23 12:14:13 +02001539 * Added support for yotta as a build system.
1540 * Primary open source license changed to Apache 2.0 license.
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001541
Manuel Pégourié-Gonnard6f424172015-07-24 16:53:46 +02001542Bugfix
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001543 * Fix segfault in the benchmark program when benchmarking DHM.
1544 * Fix build error with CMake and pre-4.5 versions of GCC (found by Hugo
Manuel Pégourié-Gonnarde96ce082015-07-30 22:46:55 +02001545 Leisink).
Manuel Pégourié-Gonnard20064082015-08-03 10:24:05 +02001546 * Fix bug when parsing a ServerHello without extensions (found by David
1547 Sears).
Manuel Pégourié-Gonnard99839932015-08-03 10:34:09 +02001548 * Fix bug in CMake lists that caused libmbedcrypto.a not to be installed
1549 (found by Benoit Lecocq).
Manuel Pégourié-Gonnarde33316c2015-08-07 13:17:23 +02001550 * Fix bug in Makefile that caused libmbedcrypto and libmbedx509 not to be
1551 installed (found by Rawi666).
1552 * Fix compile error with armcc 5 with --gnu option.
Manuel Pégourié-Gonnarded46c432015-08-10 10:17:32 +02001553 * Fix bug in Makefile that caused programs not to be installed correctly
Manuel Pégourié-Gonnardc98204e2015-08-11 04:21:01 +02001554 (found by robotanarchy) (#232).
1555 * Fix bug in Makefile that prevented from installing without building the
Manuel Pégourié-Gonnard1385a282015-08-27 11:30:58 +02001556 tests (found by robotanarchy) (#232).
1557 * Fix missing -static-libgcc when building shared libraries for Windows
1558 with make.
Simon Butcher52754592015-09-03 13:06:01 +01001559 * Fix link error when building shared libraries for Windows with make.
1560 * Fix error when loading libmbedtls.so.
1561 * Fix bug in mbedtls_ssl_conf_default() that caused the default preset to
1562 be always used (found by dcb314) (#235)
1563 * Fix bug in mbedtls_rsa_public() and mbedtls_rsa_private() that could
1564 result trying to unlock an unlocked mutex on invalid input (found by
1565 Fredrik Axelsson) (#257)
Manuel Pégourié-Gonnard52a50792015-07-27 10:36:12 +02001566 * Fix -Wshadow warnings (found by hnrkp) (#240)
Manuel Pégourié-Gonnard052d10c2015-07-31 11:09:59 +02001567 * Fix memory corruption on client with overlong PSK identity, around
1568 SSL_MAX_CONTENT_LEN or higher - not triggerrable remotely (found by
Manuel Pégourié-Gonnard32da9f62015-07-31 15:52:30 +02001569 Aleksandrs Saveljevs) (#238)
1570 * Fix unused function warning when using MBEDTLS_MDx_ALT or
1571 MBEDTLS_SHAxxx_ALT (found by Henrik) (#239)
Manuel Pégourié-Gonnardb2beb842015-09-01 19:37:32 +02001572 * Fix memory corruption in pkey programs (found by yankuncheng) (#210)
1573
1574Changes
Simon Butcher52754592015-09-03 13:06:01 +01001575 * The PEM parser now accepts a trailing space at end of lines (#226).
1576 * It is now possible to #include a user-provided configuration file at the
1577 end of the default config.h by defining MBEDTLS_USER_CONFIG_FILE on the
1578 compiler's command line.
Manuel Pégourié-Gonnard4f3368e2015-07-19 15:01:28 +02001579 * When verifying a certificate chain, if an intermediate certificate is
Paul Bakker4cb87f42015-07-10 14:09:43 +01001580 trusted, no later cert is checked. (suggested by hannes-landeholm)
Paul Bakker9c5898f2015-02-16 16:18:33 +01001581 (#220).
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001582 * Prepend a "thread identifier" to debug messages (issue pointed out by
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001583 Hugo Leisink) (#210).
1584 * Add mbedtls_ssl_get_max_frag_len() to query the current maximum fragment
1585 length.
1586
1587= mbed TLS 2.0.0 released 2015-07-13
1588
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001589Features
1590 * Support for DTLS 1.0 and 1.2 (RFC 6347).
1591 * Ability to override core functions from MDx, SHAx, AES and DES modules
1592 with custom implementation (eg hardware accelerated), complementing the
1593 ability to override the whole module.
1594 * New server-side implementation of session tickets that rotate keys to
Manuel Pégourié-Gonnard4d7fbbf2014-10-15 15:40:55 +02001595 preserve forward secrecy, and allows sharing across multiple contexts.
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001596 * Added a concept of X.509 cerificate verification profile that controls
Manuel Pégourié-Gonnarda25ffc32015-06-25 12:01:16 +02001597 which algorithms and key sizes (curves for ECDSA) are acceptable.
1598 * Expanded configurability of security parameters in the SSL module with
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001599 mbedtls_ssl_conf_dhm_min_bitlen() and mbedtls_ssl_conf_sig_hashes().
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001600 * Introduced a concept of presets for SSL security-relevant configuration
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001601 parameters.
Manuel Pégourié-Gonnard6e088f92015-05-06 17:53:08 +01001602
Manuel Pégourié-Gonnard898e0aa2015-06-18 15:28:12 +02001603API Changes
Manuel Pégourié-Gonnard797f48a2015-06-18 15:45:05 +02001604 * The library has been split into libmbedcrypto, libmbedx509, libmbedtls.
1605 You now need to link to all of them if you use TLS for example.
1606 * All public identifiers moved to the mbedtls_* or MBEDTLS_* namespace.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001607 Some names have been further changed to make them more consistent.
Antonin Décimo8fd91562019-01-23 15:24:37 +01001608 Migration helpers scripts/rename.pl and include/mbedtls/compat-1.3.h are
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001609 provided. Full list of renamings in scripts/data_files/rename-1.3-2.0.txt
Manuel Pégourié-Gonnarde6bdc442014-09-17 11:34:57 +02001610 * Renamings of fields inside structures, not covered by the previous list:
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001611 mbedtls_cipher_info_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001612 mbedtls_cipher_context_t.key_length -> key_bitlen
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001613 mbedtls_ecp_curve_info.size -> bit_size
Manuel Pégourié-Gonnard41d479e2015-04-29 00:48:22 +02001614 * Headers are now found in the 'mbedtls' directory (previously 'polarssl').
Manuel Pégourié-Gonnard6963ff02015-04-28 18:02:54 +02001615 * The following _init() functions that could return errors have
Manuel Pégourié-Gonnardc34e8dd2015-04-28 21:42:17 +02001616 been split into an _init() that returns void and another function that
Manuel Pégourié-Gonnard2f84e972015-05-11 09:52:24 +02001617 should generally be the first function called on this context after init:
1618 mbedtls_ssl_init() -> mbedtls_ssl_setup()
Manuel Pégourié-Gonnard06939ce2015-05-11 11:25:46 +02001619 mbedtls_ccm_init() -> mbedtls_ccm_setkey()
1620 mbedtls_gcm_init() -> mbedtls_gcm_setkey()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001621 mbedtls_hmac_drbg_init() -> mbedtls_hmac_drbg_seed(_buf)()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001622 mbedtls_ctr_drbg_init() -> mbedtls_ctr_drbg_seed()
Tillmann Karras588ad502015-09-25 04:27:22 +02001623 Note that for mbedtls_ssl_setup(), you need to be done setting up the
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001624 ssl_config structure before calling it.
1625 * Most ssl_set_xxx() functions (all except ssl_set_bio(), ssl_set_hostname(),
1626 ssl_set_session() and ssl_set_client_transport_id(), plus
1627 ssl_legacy_renegotiation()) have been renamed to mbedtls_ssl_conf_xxx()
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001628 (see rename.pl and compat-1.3.h above) and their first argument's type
1629 changed from ssl_context to ssl_config.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001630 * ssl_set_bio() changed signature (contexts merged, order switched, one
1631 additional callback for read-with-timeout).
Manuel Pégourié-Gonnard9a1a4d62015-05-11 10:35:53 +02001632 * The following functions have been introduced and must be used in callback
1633 implementations (SNI, PSK) instead of their *conf counterparts:
1634 mbedtls_ssl_set_hs_own_cert()
1635 mbedtls_ssl_set_hs_ca_chain()
1636 mbedtls_ssl_set_hs_psk()
Manuel Pégourié-Gonnardcaace652015-05-11 09:57:11 +02001637 * mbedtls_ssl_conf_ca_chain() lost its last argument (peer_cn), now set
Manuel Pégourié-Gonnardbc2b7712015-05-06 11:14:19 +01001638 using mbedtls_ssl_set_hostname().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001639 * mbedtls_ssl_conf_session_cache() changed prototype (only one context
Manuel Pégourié-Gonnard5cb33082015-05-06 18:06:26 +01001640 pointer, parameters reordered).
Manuel Pégourié-Gonnard866eb472015-05-25 19:41:37 +02001641 * On server, mbedtls_ssl_conf_session_tickets_cb() must now be used in
1642 place of mbedtls_ssl_conf_session_tickets() to enable session tickets.
Manuel Pégourié-Gonnardfd474232015-06-23 16:34:24 +02001643 * The SSL debug callback gained two new arguments (file name, line number).
1644 * Debug modes were removed.
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001645 * mbedtls_ssl_conf_truncated_hmac() now returns void.
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001646 * mbedtls_memory_buffer_alloc_init() now returns void.
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001647 * X.509 verification flags are now an uint32_t. Affect the signature of:
1648 mbedtls_ssl_get_verify_result()
1649 mbedtls_x509_ctr_verify_info()
Manuel Pégourié-Gonnard96936682015-06-02 15:14:15 +01001650 mbedtls_x509_crt_verify() (flags, f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnarde6ef16f2015-05-11 19:54:43 +02001651 mbedtls_ssl_conf_verify() (f_vrfy -> needs to be updated)
Manuel Pégourié-Gonnardbc6ff232015-06-02 16:33:08 +01001652 * The following functions changed prototype to avoid an in-out length
1653 parameter:
1654 mbedtls_base64_encode()
1655 mbedtls_base64_decode()
1656 mbedtls_mpi_write_string()
1657 mbedtls_dhm_calc_secret()
Manuel Pégourié-Gonnard91895852015-06-30 13:34:45 +02001658 * In the NET module, all "int" and "int *" arguments for file descriptors
1659 changed type to "mbedtls_net_context *".
Manuel Pégourié-Gonnard0b104b02015-05-14 21:52:40 +02001660 * net_accept() gained new arguments for the size of the client_ip buffer.
Manuel Pégourié-Gonnard8f5fd312015-04-24 14:42:34 +02001661 * In the threading layer, mbedtls_mutex_init() and mbedtls_mutex_free() now
1662 return void.
Antonin Décimo8fd91562019-01-23 15:24:37 +01001663 * ecdsa_write_signature() gained an additional md_alg argument and
Manuel Pégourié-Gonnarddfdcac92015-03-31 11:41:42 +02001664 ecdsa_write_signature_det() was deprecated.
Manuel Pégourié-Gonnardb8cfe3f2015-03-31 11:04:45 +02001665 * pk_sign() no longer accepts md_alg == POLARSSL_MD_NONE with ECDSA.
Manuel Pégourié-Gonnard1cd10ad2015-06-23 11:07:37 +02001666 * Last argument of x509_crt_check_key_usage() and
1667 mbedtls_x509write_crt_set_key_usage() changed from int to unsigned.
Manuel Pégourié-Gonnarda958d692015-03-27 10:23:53 +01001668 * test_ca_list (from certs.h) is renamed to test_cas_pem and is only
1669 available if POLARSSL_PEM_PARSE_C is defined (it never worked without).
1670 * Test certificates in certs.c are no longer guaranteed to be nul-terminated
Manuel Pégourié-Gonnard75f90102015-03-27 09:56:18 +01001671 strings; use the new *_len variables instead of strlen().
Manuel Pégourié-Gonnard43b37cb2015-05-12 11:20:10 +02001672 * Functions mbedtls_x509_xxx_parse(), mbedtls_pk_parse_key(),
1673 mbedtls_pk_parse_public_key() and mbedtls_dhm_parse_dhm() now expect the
1674 length parameter to include the terminating null byte for PEM input.
Manuel Pégourié-Gonnard35f1d7f2015-03-19 12:42:40 +00001675 * Signature of mpi_mul_mpi() changed to make the last argument unsigned
Manuel Pégourié-Gonnard5b9e5b12015-05-26 17:46:09 +02001676 * calloc() is now used instead of malloc() everywhere. API of platform
1677 layer and the memory_buffer_alloc module changed accordingly.
Manuel Pégourié-Gonnard1b8de572015-05-27 16:49:37 +02001678 (Thanks to Mansour Moufid for helping with the replacement.)
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001679 * Change SSL_DISABLE_RENEGOTIATION config.h flag to SSL_RENEGOTIATION
1680 (support for renegotiation now needs explicit enabling in config.h).
Manuel Pégourié-Gonnard60c793b2015-06-18 20:52:58 +02001681 * Split MBEDTLS_HAVE_TIME into MBEDTLS_HAVE_TIME and MBEDTLS_HAVE_TIME_DATE
1682 in config.h
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001683 * net_connect() and net_bind() have a new 'proto' argument to choose
1684 between TCP and UDP, using the macros NET_PROTO_TCP or NET_PROTO_UDP.
Manuel Pégourié-Gonnardc0d74942015-06-23 12:30:57 +02001685 Their 'port' argument type is changed to a string.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001686 * Some constness fixes
1687
1688Removals
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001689 * Removed mbedtls_ecp_group_read_string(). Only named groups are supported.
Manuel Pégourié-Gonnard56cc88a2015-05-11 18:40:45 +02001690 * Removed mbedtls_ecp_sub() and mbedtls_ecp_add(), use
1691 mbedtls_ecp_muladd().
Manuel Pégourié-Gonnard41b9c2b2015-05-28 14:56:20 +02001692 * Removed individual mdX_hmac, shaX_hmac, mdX_file and shaX_file functions
1693 (use generic functions from md.h)
1694 * Removed mbedtls_timing_msleep(). Use mbedtls_net_usleep() or a custom
Manuel Pégourié-Gonnarda63bc942015-05-14 18:22:47 +02001695 waiting function.
Manuel Pégourié-Gonnard53585ee2015-06-25 08:52:25 +02001696 * Removed test DHM parameters from the test certs module.
Manuel Pégourié-Gonnardd54e6172015-04-28 17:56:12 +02001697 * Removed the PBKDF2 module (use PKCS5).
1698 * Removed POLARSSL_ERROR_STRERROR_BC (use mbedtls_strerror()).
1699 * Removed compat-1.2.h (helper for migrating from 1.2 to 1.3).
1700 * Removed openssl.h (very partial OpenSSL compatibility layer).
1701 * Configuration options POLARSSL_HAVE_LONGLONG was removed (now always on).
1702 * Configuration options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 have
1703 been removed (compiler is required to support 32-bit operations).
1704 * Configuration option POLARSSL_HAVE_IPV6 was removed (always enabled).
1705 * Removed test program o_p_test, the script compat.sh does more.
1706 * Removed test program ssl_test, superseded by ssl-opt.sh.
1707 * Removed helper script active-config.pl
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001708
1709New deprecations
1710 * md_init_ctx() is deprecated in favour of md_setup(), that adds a third
1711 argument (allowing memory savings if HMAC is not used)
Manuel Pégourié-Gonnardf4acfe12014-09-17 10:56:54 +02001712
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001713Semi-API changes (technically public, morally private)
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001714 * Renamed a few headers to include _internal in the name. Those headers are
1715 not supposed to be included by users.
Manuel Pégourié-Gonnardc89d6cf2015-03-31 14:43:19 +02001716 * Changed md_info_t into an opaque structure (use md_get_xxx() accessors).
1717 * Changed pk_info_t into an opaque structure.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001718 * Changed cipher_base_t into an opaque structure.
1719 * Removed sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
Manuel Pégourié-Gonnard1d0ca1a2015-03-27 16:50:00 +01001720 * x509_crt.key_usage changed from unsigned char to unsigned int.
Manuel Pégourié-Gonnard50518f42015-05-26 11:04:15 +02001721 * Removed r and s from ecdsa_context
1722 * Removed mode from des_context and des3_context
Manuel Pégourié-Gonnard1022fed2015-03-27 16:30:47 +01001723
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001724Default behavior changes
Manuel Pégourié-Gonnard8c8be1e2015-03-31 14:21:11 +02001725 * The default minimum TLS version is now TLS 1.0.
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001726 * RC4 is now blacklisted by default in the SSL/TLS layer, and excluded from the
1727 default ciphersuite list returned by ssl_list_ciphersuites()
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001728 * Support for receiving SSLv2 ClientHello is now disabled by default at
1729 compile time.
Manuel Pégourié-Gonnardfa44f202015-03-27 17:52:25 +01001730 * The default authmode for SSL/TLS clients is now REQUIRED.
Manuel Pégourié-Gonnard348bcb32015-03-31 14:01:33 +02001731 * Support for RSA_ALT contexts in the PK layer is now optional. Since is is
1732 enabled in the default configuration, this is only noticeable if using a
1733 custom config.h
Manuel Pégourié-Gonnard1028b742015-05-06 17:33:07 +01001734 * Default DHM parameters server-side upgraded from 1024 to 2048 bits.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001735 * A minimum RSA key size of 2048 bits is now enforced during ceritificate
1736 chain verification.
Manuel Pégourié-Gonnard662c6e82015-05-06 17:39:23 +01001737 * Negotiation of truncated HMAC is now disabled by default on server too.
Manuel Pégourié-Gonnardcb46fd82015-05-28 17:06:07 +02001738 * The following functions are now case-sensitive:
1739 mbedtls_cipher_info_from_string()
1740 mbedtls_ecp_curve_info_from_name()
1741 mbedtls_md_info_from_string()
1742 mbedtls_ssl_ciphersuite_from_string()
1743 mbedtls_version_check_feature()
Manuel Pégourié-Gonnard606df8c2015-03-27 17:13:17 +01001744
Manuel Pégourié-Gonnardaff37e52015-05-11 18:11:57 +02001745Requirement changes
Manuel Pégourié-Gonnardab229102015-04-15 11:53:16 +02001746 * The minimum MSVC version required is now 2010 (better C99 support).
Manuel Pégourié-Gonnardd4f04db2015-05-14 18:58:17 +02001747 * The NET layer now unconditionnaly relies on getaddrinfo() and select().
Manuel Pégourié-Gonnard3a3ae3d2015-05-06 17:08:54 +01001748 * Compiler is required to support C99 types such as long long and uint32_t.
Manuel Pégourié-Gonnard88bdb0b2015-03-10 14:02:33 +00001749
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001750API changes from the 1.4 preview branch
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001751 * ssl_set_bio_timeout() was removed, split into mbedtls_ssl_set_bio() with
1752 new prototype, and mbedtls_ssl_set_read_timeout().
Manuel Pégourié-Gonnard01e5e8c2015-05-11 10:11:56 +02001753 * The following functions now return void:
1754 mbedtls_ssl_conf_transport()
1755 mbedtls_ssl_conf_max_version()
1756 mbedtls_ssl_conf_min_version()
Manuel Pégourié-Gonnard0c890352015-05-13 10:28:41 +02001757 * DTLS no longer hard-depends on TIMING_C, but uses a callback interface
1758 instead, see mbedtls_ssl_set_timer_cb(), with the Timing module providing
1759 an example implementation, see mbedtls_timing_delay_context and
1760 mbedtls_timing_set/get_delay().
Manuel Pégourié-Gonnardabc729e2015-07-01 01:28:24 +02001761 * With UDP sockets, it is no longer necessary to call net_bind() again
1762 after a successful net_accept().
Manuel Pégourié-Gonnard1b511f92015-05-06 15:54:23 +01001763
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001764Changes
1765 * mbedtls_ctr_drbg_random() and mbedtls_hmac_drbg_random() are now
1766 thread-safe if MBEDTLS_THREADING_C is enabled.
Manuel Pégourié-Gonnard88d37852015-06-17 14:26:49 +02001767 * Reduced ROM fooprint of SHA-256 and added an option to reduce it even
1768 more (at the expense of performance) MBEDTLS_SHA256_SMALLER.
Manuel Pégourié-Gonnard0a4fb092015-05-07 12:50:31 +01001769
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001770= mbed TLS 1.3 branch
1771
1772Security
Manuel Pégourié-Gonnard9f982512015-04-17 16:55:53 +02001773 * With authmode set to SSL_VERIFY_OPTIONAL, verification of keyUsage and
Manuel Pégourié-Gonnarde6efa6f2015-04-20 11:01:48 +01001774 extendedKeyUsage on the leaf certificate was lost (results not accessible
1775 via ssl_get_verify_results()).
Manuel Pégourié-Gonnard47fede02015-04-29 01:35:48 +02001776 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
1777 https://dl.acm.org/citation.cfm?id=2714625
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001778
1779Features
Manuel Pégourié-Gonnard154b00b2015-05-11 21:05:36 +02001780 * Improve ECC performance by using more efficient doubling formulas
1781 (contributed by Peter Dettman).
Manuel Pégourié-Gonnard39a183a2015-04-17 16:14:32 +02001782 * Add x509_crt_verify_info() to display certificate verification results.
Manuel Pégourié-Gonnard95f00892015-04-15 14:12:05 +02001783 * Add support for reading DH parameters with privateValueLength included
Manuel Pégourié-Gonnardba334202015-04-17 16:16:52 +02001784 (contributed by Daniel Kahn Gillmor).
Manuel Pégourié-Gonnard39ead3e2015-03-27 13:09:21 +01001785 * Add support for bit strings in X.509 names (request by Fredrik Axelsson).
1786 * Add support for id-at-uniqueIdentifier in X.509 names.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001787 * Add support for overriding snprintf() (except on Windows) and exit() in
1788 the platform layer.
1789 * Add an option to use macros instead of function pointers in the platform
1790 layer (helps get rid of unwanted references).
Manuel Pégourié-Gonnardea0184b2015-02-16 15:42:16 +00001791 * Improved Makefiles for Windows targets by fixing library targets and making
1792 cross-compilation easier (thanks to Alon Bar-Lev).
Manuel Pégourié-Gonnardad350ed2015-02-16 17:45:35 +00001793 * The benchmark program also prints heap usage for public-key primitives
1794 if POLARSSL_MEMORY_BUFFER_ALLOC_C and POLARSSL_MEMORY_DEBUG are defined.
1795 * New script ecc-heap.sh helps measuring the impact of ECC parameters on
1796 speed and RAM (heap only for now) usage.
1797 * New script memory.sh helps measuring the ROM and RAM requirements of two
1798 reduced configurations (PSK-CCM and NSA suite B).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001799 * Add config flag POLARSSL_DEPRECATED_WARNING (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001800 warnings on use of deprecated functions (with GCC and Clang only).
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001801 * Add config flag POLARSSL_DEPRECATED_REMOVED (off by default) to produce
Manuel Pégourié-Gonnardf7dbedb2015-03-23 14:20:04 +01001802 errors on use of deprecated functions.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001803
1804Bugfix
Manuel Pégourié-Gonnarddccb80b2015-06-03 10:20:33 +01001805 * Fix compile errors with PLATFORM_NO_STD_FUNCTIONS.
Manuel Pégourié-Gonnardf2ec5052015-06-03 09:50:07 +01001806 * Fix compile error with PLATFORM_EXIT_ALT (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard3e87a9f2015-06-03 09:48:26 +01001807 * Fix bug in entropy.c when THREADING_C is also enabled that caused
1808 entropy_free() to crash (thanks to Rafał Przywara).
Manuel Pégourié-Gonnard2a1524c2015-05-27 17:59:46 +02001809 * Fix memory leak when gcm_setkey() and ccm_setkey() are used more than
1810 once on the same context.
Manuel Pégourié-Gonnardfa950c92015-04-30 12:50:22 +02001811 * Fix bug in ssl_mail_client when password is longer that username (found
1812 by Bruno Pape).
Manuel Pégourié-Gonnard159c5242015-04-30 11:15:22 +02001813 * Fix undefined behaviour (memcmp( NULL, NULL, 0 );) in X.509 modules
1814 (detected by Clang's 3.6 UBSan).
Manuel Pégourié-Gonnard770b5e12015-04-29 17:02:01 +02001815 * mpi_size() and mpi_msb() would segfault when called on an mpi that is
1816 initialized but not set (found by pravic).
Manuel Pégourié-Gonnardd97828e2015-04-29 14:03:28 +02001817 * Fix detection of support for getrandom() on Linux (reported by syzzer) by
1818 doing it at runtime (using uname) rather that compile time.
Manuel Pégourié-Gonnardf5203e02015-04-29 09:58:00 +02001819 * Fix handling of symlinks by "make install" (found by Gaël PORTAY).
Manuel Pégourié-Gonnarda2fce212015-04-15 19:09:03 +02001820 * Fix potential NULL pointer dereference (not trigerrable remotely) when
1821 ssl_write() is called before the handshake is finished (introduced in
1822 1.3.10) (first reported by Martin Blumenstingl).
Manuel Pégourié-Gonnard924cd102015-04-14 11:18:04 +02001823 * Fix bug in pk_parse_key() that caused some valid private EC keys to be
1824 rejected.
Manuel Pégourié-Gonnardcf201202015-04-02 10:46:55 +01001825 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
Manuel Pégourié-Gonnard88fca3e2015-03-27 15:06:07 +01001826 * Fix thread safety bug in RSA operations (found by Fredrik Axelsson).
Manuel Pégourié-Gonnard38433532015-02-11 11:35:58 +00001827 * Fix hardclock() (only used in the benchmarking program) with some
1828 versions of mingw64 (found by kxjhlele).
Manuel Pégourié-Gonnarddda52132015-02-11 11:36:31 +00001829 * Fix warnings from mingw64 in timing.c (found by kxjklele).
Manuel Pégourié-Gonnard6fdc4ca2015-02-13 17:15:18 +00001830 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
1831 platforms.
Manuel Pégourié-Gonnarddf4e4402015-02-18 10:11:06 +00001832 * Fix potential memory leak in ssl_set_psk() (found by Mansour Moufid).
Manuel Pégourié-Gonnard51bccd32015-03-10 16:09:08 +00001833 * Fix compile error when POLARSSL_SSL_DISABLE_RENEGOTATION and
1834 POLARSSL_SSL_SSESSION_TICKETS where both enabled in config.h (introduced
1835 in 1.3.10).
Manuel Pégourié-Gonnard1a901472015-03-10 16:12:29 +00001836 * Add missing extern "C" guard in aesni.h (reported by amir zamani).
Manuel Pégourié-Gonnard0878a0d2015-03-31 15:13:29 +02001837 * Add missing dependency on SHA-256 in some x509 programs (reported by
1838 Gergely Budai).
Manuel Pégourié-Gonnard07ec1dd2015-04-03 17:26:50 +02001839 * Fix bug related to ssl_set_curves(): the client didn't check that the
1840 curve picked by the server was actually allowed.
Manuel Pégourié-Gonnard7bf19762015-02-10 10:09:37 +00001841
1842Changes
Manuel Pégourié-Gonnard12a8b662015-04-15 14:20:14 +02001843 * Remove bias in mpi_gen_prime (contributed by Pascal Junod).
1844 * Remove potential sources of timing variations (some contributed by Pascal
1845 Junod).
Manuel Pégourié-Gonnard23ce09b2015-04-09 14:51:51 +02001846 * Options POLARSSL_HAVE_INT8 and POLARSSL_HAVE_INT16 are deprecated.
Manuel Pégourié-Gonnarda98af5e2015-04-09 14:40:46 +02001847 * Enabling POLARSSL_NET_C without POLARSSL_HAVE_IPV6 is deprecated.
Manuel Pégourié-Gonnard8c3f0f42015-04-09 14:10:26 +02001848 * compat-1.2.h and openssl.h are deprecated.
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001849 * Adjusting/overriding CFLAGS and LDFLAGS with the make build system is now
Manuel Pégourié-Gonnard40f315a2015-03-13 13:49:26 +00001850 more flexible (warning: OFLAGS is not used any more) (see the README)
1851 (contributed by Alon Bar-Lev).
Manuel Pégourié-Gonnard0645bfa2015-04-15 11:14:22 +02001852 * ssl_set_own_cert() no longer calls pk_check_pair() since the
Manuel Pégourié-Gonnardf427f882015-03-10 15:35:29 +00001853 performance impact was bad for some users (this was introduced in 1.3.10).
Manuel Pégourié-Gonnard6f60cd82015-02-10 10:47:03 +00001854 * Move from SHA-1 to SHA-256 in example programs using signatures
1855 (suggested by Thorsten Mühlfelder).
Manuel Pégourié-Gonnard677af932015-02-10 11:41:57 +00001856 * Remove some unneeded inclusions of header files from the standard library
1857 "minimize" others (eg use stddef.h if only size_t is needed).
1858 * Change #include lines in test files to use double quotes instead of angle
1859 brackets for uniformity with the rest of the code.
Manuel Pégourié-Gonnard00c22012015-02-13 15:14:10 +00001860 * Remove dependency on sscanf() in X.509 parsing modules.
Manuel Pégourié-Gonnard178f9d62014-10-20 14:56:56 +02001861
Paul Bakkerdaae3b72015-02-08 15:49:54 +01001862= mbed TLS 1.3.10 released 2015-02-09
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001863Security
1864 * NULL pointer dereference in the buffer-based allocator when the buffer is
Manuel Pégourié-Gonnardee7d5992015-01-28 14:02:38 +00001865 full and polarssl_free() is called (found by Mark Hasemeyer)
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001866 (only possible if POLARSSL_MEMORY_BUFFER_ALLOC_C is enabled, which it is
1867 not by default).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001868 * Fix remotely-triggerable uninitialised pointer dereference caused by
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001869 crafted X.509 certificate (TLS server is not affected if it doesn't ask for a
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001870 client certificate) (found using Codenomicon Defensics).
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001871 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
Manuel Pégourié-Gonnardd6814432014-11-12 01:25:31 +01001872 (TLS server is not affected if it doesn't ask for a client certificate)
1873 (found using Codenomicon Defensics).
1874 * Fix potential stack overflow while parsing crafted X.509 certificates
1875 (TLS server is not affected if it doesn't ask for a client certificate)
Manuel Pégourié-Gonnardb1340602014-11-11 23:11:16 +01001876 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard6674cce2015-02-06 10:30:58 +00001877 * Fix timing difference that could theoretically lead to a
1878 Bleichenbacher-style attack in the RSA and RSA-PSK key exchanges
1879 (reported by Sebastian Schinzel).
Manuel Pégourié-Gonnard0369a522014-11-11 22:17:26 +01001880
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001881Features
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001882 * Add support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv).
1883 * Add support for Extended Master Secret (draft-ietf-tls-session-hash).
1884 * Add support for Encrypt-then-MAC (RFC 7366).
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001885 * Add function pk_check_pair() to test if public and private keys match.
Manuel Pégourié-Gonnard426d4ae2014-11-19 16:58:28 +01001886 * Add x509_crl_parse_der().
Manuel Pégourié-Gonnardfd6c85c2014-11-20 16:34:20 +01001887 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
1888 length of an X.509 verification chain.
Manuel Pégourié-Gonnardfa423882014-11-04 19:57:55 +01001889 * Support for renegotiation can now be disabled at compile-time
Manuel Pégourié-Gonnard3ff78232015-01-08 11:15:09 +01001890 * Support for 1/n-1 record splitting, a countermeasure against BEAST.
Paul Bakker6152b022015-04-14 15:00:09 +02001891 * Certificate selection based on signature hash, preferring SHA-1 over SHA-2
Manuel Pégourié-Gonnarddf331a52015-01-08 16:43:07 +01001892 for pre-1.2 clients when multiple certificates are available.
Manuel Pégourié-Gonnard18292452015-01-09 14:34:13 +01001893 * Add support for getrandom() syscall on recent Linux kernels with Glibc or
1894 a compatible enough libc (eg uClibc).
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001895 * Add ssl_set_arc4_support() to make it easier to disable RC4 at runtime
Manuel Pégourié-Gonnardbd47a582015-01-12 13:43:29 +01001896 while using the default ciphersuite list.
Manuel Pégourié-Gonnard607d6632015-01-26 11:17:20 +00001897 * Added new error codes and debug messages about selection of
1898 ciphersuite/certificate.
Manuel Pégourié-Gonnard547ff662014-11-26 15:42:16 +01001899
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001900Bugfix
1901 * Stack buffer overflow if ctr_drbg_update() is called with too large
1902 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
Manuel Pégourié-Gonnard5dd28ea2014-11-27 13:57:42 +01001903 * Possible buffer overflow of length at most POLARSSL_MEMORY_ALIGN_MULTIPLE
1904 if memory_buffer_alloc_init() was called with buf not aligned and len not
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001905 a multiple of POLARSSL_MEMORY_ALIGN_MULTIPLE (not triggerable remotely).
1906 * User set CFLAGS were ignored by Cmake with gcc (introduced in 1.3.9, found
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001907 by Julian Ospald).
Manuel Pégourié-Gonnardb31b61b2014-11-10 13:05:43 +01001908 * Fix potential undefined behaviour in Camellia.
Manuel Pégourié-Gonnarde9599792014-11-10 13:43:55 +01001909 * Fix potential failure in ECDSA signatures when POLARSSL_ECP_MAX_BITS is a
1910 multiple of 8 (found by Gergely Budai).
Manuel Pégourié-Gonnardacdb9b92015-01-23 17:50:34 +00001911 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
1912 Peter Vaskovic).
Manuel Pégourié-Gonnard9d7fc162015-01-19 17:16:54 +00001913 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
Manuel Pégourié-Gonnarde89163c2015-01-23 14:30:57 +00001914 * ssl_get_verify_result() now works even if the handshake was aborted due
1915 to a failed verification (found by Fredrik Axelsson).
Manuel Pégourié-Gonnardf3046ef2015-01-28 14:13:30 +00001916 * Skip writing and parsing signature_algorithm extension if none of the
1917 key exchanges enabled needs certificates. This fixes a possible interop
1918 issue with some servers when a zero-length extension was sent. (Reported
1919 by Peter Dettman.)
Manuel Pégourié-Gonnardaa422b22015-02-02 09:30:45 +00001920 * On a 0-length input, base64_encode() did not correctly set output length
1921 (found by Hendrik van den Boogaard).
Manuel Pégourié-Gonnard54f6e562014-11-10 12:15:39 +01001922
Manuel Pégourié-Gonnardd056ce02014-10-29 22:29:20 +01001923Changes
1924 * Use deterministic nonces for AEAD ciphers in TLS by default (possible to
1925 switch back to random with POLARSSL_SSL_AEAD_RANDOM_IV in config.h).
Manuel Pégourié-Gonnarde10e06d2014-11-06 18:15:12 +01001926 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
Manuel Pégourié-Gonnardde171252014-11-08 17:58:24 +01001927 * ssl_set_own_cert() now returns an error on key-certificate mismatch.
Manuel Pégourié-Gonnard8a5e3d42014-11-12 17:47:28 +01001928 * Forbid repeated extensions in X.509 certificates.
Manuel Pégourié-Gonnard8c9223d2014-11-19 10:17:21 +01001929 * debug_print_buf() now prints a text view in addition to hexadecimal.
Manuel Pégourié-Gonnardf01768c2015-01-08 17:06:16 +01001930 * A specific error is now returned when there are ciphersuites in common
1931 but none of them is usable due to external factors such as no certificate
Paul Bakkere522d0f2015-01-14 16:12:48 +01001932 with a suitable (extended)KeyUsage or curve or no PSK set.
Manuel Pégourié-Gonnardd1a878c2015-01-14 16:59:23 +01001933 * It is now possible to disable negotiation of truncated HMAC server-side
Manuel Pégourié-Gonnarde117a8f2015-01-09 12:39:35 +01001934 at runtime with ssl_set_truncated_hmac().
Paul Bakker5b8f7ea2015-01-14 16:26:54 +01001935 * Example programs for SSL client and server now disable SSLv3 by default.
1936 * Example programs for SSL client and server now disable RC4 by default.
Manuel Pégourié-Gonnardc9e04832015-01-19 16:24:23 +00001937 * Use platform.h in all test suites and programs.
Manuel Pégourié-Gonnard5cb4b312014-11-25 17:41:50 +01001938
Paul Bakker9eac4f72014-10-20 13:56:15 +02001939= PolarSSL 1.3.9 released 2014-10-20
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001940Security
1941 * Lowest common hash was selected from signature_algorithms extension in
1942 TLS 1.2 (found by Darren Bane) (introduced in 1.3.8).
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001943 * Remotely-triggerable memory leak when parsing some X.509 certificates
Paul Bakkerb082bb52014-10-20 13:37:51 +02001944 (server is not affected if it doesn't ask for a client certificate)
1945 (found using Codenomicon Defensics).
Manuel Pégourié-Gonnard43c3b282014-10-17 12:42:11 +02001946 * Remotely-triggerable memory leak when parsing crafted ClientHello
Paul Bakkerb082bb52014-10-20 13:37:51 +02001947 (not affected if ECC support was compiled out) (found using Codenomicon
1948 Defensics).
Manuel Pégourié-Gonnard480905d2014-08-21 19:38:32 +02001949
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001950Bugfix
1951 * Support escaping of commas in x509_string_to_names()
Manuel Pégourié-Gonnard955028f2014-07-12 01:27:34 +02001952 * Fix compile error in ssl_pthread_server (found by Julian Ospald).
Manuel Pégourié-Gonnard9a6b4422014-07-21 13:42:54 +02001953 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
Manuel Pégourié-Gonnard42cc6412014-07-21 13:55:54 +02001954 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
Manuel Pégourié-Gonnard868c0ee2014-07-21 14:18:17 +02001955 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
Manuel Pégourié-Gonnard462906f2014-07-21 17:37:01 +02001956 * Fix compile error in timing.c when POLARSSL_NET_C and POLARSSL_SELFTEST
1957 are defined but not POLARSSL_HAVE_TIME (found by Stephane Di Vito).
Manuel Pégourié-Gonnarddca108e2014-07-21 18:15:22 +02001958 * Remove non-existent file from VS projects (found by Peter Vaskovic).
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001959 * ssl_read() could return non-application data records on server while
1960 renegotation was pending, and on client when a HelloRequest was received.
Manuel Pégourié-Gonnardf07f4212014-08-15 19:04:47 +02001961 * Server-initiated renegotiation would fail with non-blocking I/O if the
1962 write callback returned WANT_WRITE when requesting renegotiation.
Manuel Pégourié-Gonnarda13500f2014-08-19 16:14:04 +02001963 * ssl_close_notify() could send more than one message in some circumstances
1964 with non-blocking I/O.
Sander Niemeijeref5087d2014-08-16 12:45:52 +02001965 * Fix compiler warnings on iOS (found by Sander Niemeijer).
Paul Bakker5a5fa922014-09-26 14:53:04 +02001966 * x509_crt_parse() did not increase total_failed on PEM error
Manuel Pégourié-Gonnard7f4ed672014-10-14 20:56:02 +02001967 * Fix compile error with armcc in mpi_is_prime()
Manuel Pégourié-Gonnardf7cdbc02014-10-17 17:02:10 +02001968 * Fix potential bad read in parsing ServerHello (found by Adrien
1969 Vialletelle).
Paul Bakker8dcb2d72014-08-08 12:22:30 +02001970
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001971Changes
1972 * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no
1973 standard defining how to use SHA-2 with SSL 3.0).
Manuel Pégourié-Gonnarda04fa4f2014-07-13 16:16:44 +02001974 * Ciphersuites using RSA-PSK key exchange new require TLS 1.x (the spec is
1975 ambiguous on how to encode some packets with SSL 3.0).
Manuel Pégourié-Gonnard192253a2014-07-21 16:37:15 +02001976 * Made buffer size in pk_write_(pub)key_pem() more dynamic, eg smaller if
1977 RSA is disabled, larger if POLARSSL_MPI_MAX_SIZE is larger.
Manuel Pégourié-Gonnardf26a1e82014-08-19 12:28:50 +02001978 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
1979 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
Manuel Pégourié-Gonnardda1b4de2014-09-08 17:03:50 +02001980 * POLARSSL_MPI_MAX_SIZE now defaults to 1024 in order to allow 8192 bits
1981 RSA keys.
Manuel Pégourié-Gonnard64938c62014-10-15 21:45:39 +02001982 * Accept spaces at end of line or end of buffer in base64_decode().
Manuel Pégourié-Gonnard5d861852014-10-17 12:41:41 +02001983 * X.509 certificates with more than one AttributeTypeAndValue per
1984 RelativeDistinguishedName are not accepted any more.
Manuel Pégourié-Gonnard8d4ad072014-07-13 14:43:28 +02001985
Paul Bakker1910aa72014-07-11 11:28:56 +02001986= PolarSSL 1.3.8 released 2014-07-11
Manuel Pégourié-Gonnard0bcc4e12014-06-17 10:54:17 +02001987Security
1988 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
1989 It was possible to crash the server (and client) using crafted messages
1990 when a GCM suite was chosen.
1991
Paul Bakkerc6ece492014-05-22 15:45:03 +02001992Features
1993 * Add CCM module and cipher mode to Cipher Layer
1994 * Support for CCM and CCM_8 ciphersuites
Manuel Pégourié-Gonnardb4798712014-06-06 18:10:44 +02001995 * Support for parsing and verifying RSASSA-PSS signatures in the X.509
1996 modules (certificates, CRLs and CSRs).
Manuel Pégourié-Gonnard398c57b2014-06-23 12:10:59 +02001997 * Blowfish in the cipher layer now supports variable length keys.
Manuel Pégourié-Gonnard35795222014-06-24 17:33:54 +02001998 * Add example config.h for PSK with CCM, optimized for low RAM usage.
1999 * Optimize for RAM usage in example config.h for NSA Suite B profile.
Manuel Pégourié-Gonnard01edb102014-06-24 22:42:34 +02002000 * Add POLARSSL_REMOVE_ARC4_CIPHERSUITES to allow removing RC4 ciphersuites
2001 from the default list (inactive by default).
Paul Bakker23647b42014-07-04 15:00:12 +02002002 * Add server-side enforcement of sent renegotiation requests
2003 (ssl_set_renegotiation_enforced())
Manuel Pégourié-Gonnarddfc7df02014-06-30 17:59:55 +02002004 * Add SSL_CIPHERSUITES config.h flag to allow specifying a list of
2005 ciphersuites to use and save some memory if the list is small.
Paul Bakkerc6ece492014-05-22 15:45:03 +02002006
Paul Bakker863989b2014-06-12 21:49:01 +02002007Changes
2008 * Add LINK_WITH_PTHREAD option in CMake for explicit linking that is
2009 required on some platforms (e.g. OpenBSD)
Paul Bakker34617722014-06-13 17:20:13 +02002010 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2011 against unwanted compiler optimizations
Manuel Pégourié-Gonnardbd772542014-07-07 14:02:33 +02002012 * md_list() now returns hashes strongest first
Manuel Pégourié-Gonnard08e81e02014-07-08 12:56:25 +02002013 * Selection of hash for signing ServerKeyExchange in TLS 1.2 now picks
2014 strongest offered by client.
Paul Bakker28476e22014-07-01 15:59:04 +02002015 * All public contexts have _init() and _free() functions now for simpler
2016 usage pattern
Paul Bakker863989b2014-06-12 21:49:01 +02002017
Paul Bakker5593f7c2014-05-06 10:29:28 +02002018Bugfix
2019 * Fix in debug_print_msg()
Paul Bakker1ebc0c52014-05-22 15:47:58 +02002020 * Enforce alignment in the buffer allocator even if buffer is not aligned
Paul Bakkerdff31392014-05-22 15:06:41 +02002021 * Remove less-than-zero checks on unsigned numbers
Paul Bakker0f651c72014-05-22 15:12:19 +02002022 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2023 size (found by TrustInSoft)
Paul Bakker49033ba2014-06-12 21:46:13 +02002024 * Fix WSAStartup() return value check (found by Peter Vaskovic)
2025 * Other minor issues (found by Peter Vaskovic)
2026 * Fix symlink command for cross compiling with CMake (found by Andre
2027 Heinecke)
Paul Bakker3c38f292014-06-13 17:37:46 +02002028 * Fix DER output of gen_key app (found by Gergely Budai)
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002029 * Very small records were incorrectly rejected when truncated HMAC was in
Manuel Pégourié-Gonnardeaa76f72014-06-18 16:06:02 +02002030 use with some ciphersuites and versions (RC4 in all versions, CBC with
2031 versions < TLS 1.1).
Manuel Pégourié-Gonnard08485cc2014-06-18 23:11:34 +02002032 * Very large records using more than 224 bytes of padding were incorrectly
2033 rejected with CBC-based ciphersuites and TLS >= 1.1
2034 * Very large records using less padding could cause a buffer overread of up
2035 to 32 bytes with CBC-based ciphersuites and TLS >= 1.1
Manuel Pégourié-Gonnardc4eff162014-06-19 12:18:08 +02002036 * Restore ability to use a v1 cert as a CA if trusted locally. (This had
2037 been removed in 1.3.6.)
Manuel Pégourié-Gonnardd249b7a2014-06-24 11:49:16 +02002038 * Restore ability to locally trust a self-signed cert that is not a proper
2039 CA for use as an end entity certificate. (This had been removed in
2040 1.3.6.)
Barry K. Nathan35e7cb92014-05-05 23:26:13 -07002041 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
Manuel Pégourié-Gonnardacbcbba2014-06-19 17:20:43 +02002042 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2043 interpret semicolons as comment delimiters (found by Barry K. Nathan).
Manuel Pégourié-Gonnardfd35af12014-06-23 14:10:13 +02002044 * Fix off-by-one error in parsing Supported Point Format extension that
2045 caused some handshakes to fail.
Manuel Pégourié-Gonnard8df68632014-06-23 17:56:08 +02002046 * Fix possible miscomputation of the premaster secret with DHE-PSK key
2047 exchange that caused some handshakes to fail with other implementations.
2048 (Failure rate <= 1/255 with common DHM moduli.)
Manuel Pégourié-Gonnard31357252014-06-24 17:57:57 +02002049 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
Paul Bakkerd5983182014-07-04 13:50:31 +02002050 * Fix base64_decode() to return and check length correctly (in case of
2051 tight buffers)
Paul Bakker6c343d72014-07-10 14:36:19 +02002052 * Fix mpi_write_string() to write "00" as hex output for empty MPI (found
2053 by Hui Dong)
Paul Bakker5593f7c2014-05-06 10:29:28 +02002054
Paul Bakker47431b62014-05-02 13:27:13 +02002055= PolarSSL 1.3.7 released on 2014-05-02
Paul Bakkereaebbd52014-04-25 15:04:14 +02002056Features
Paul Bakkerc73079a2014-04-25 16:34:30 +02002057 * debug_set_log_mode() added to determine raw or full logging
2058 * debug_set_threshold() added to ignore messages over threshold level
Paul Bakker0f90d7d2014-04-30 11:49:44 +02002059 * version_check_feature() added to check for compile-time options at
2060 run-time
Paul Bakker92478c32014-04-25 15:18:34 +02002061
Paul Bakker088c5c52014-04-25 11:11:10 +02002062Changes
2063 * POLARSSL_CONFIG_OPTIONS has been removed. All values are individually
2064 checked and filled in the relevant module headers
Paul Bakker92478c32014-04-25 15:18:34 +02002065 * Debug module only outputs full lines instead of parts
Paul Bakker63844402014-04-30 15:34:12 +02002066 * Better support for the different Attribute Types from IETF PKIX (RFC 5280)
Manuel Pégourié-Gonnard63a5bfe2014-04-26 17:21:07 +02002067 * AES-NI now compiles with "old" assemblers too
Manuel Pégourié-Gonnardc16f4e12014-04-29 18:23:07 +02002068 * Ciphersuites based on RC4 now have the lowest priority by default
Paul Bakker088c5c52014-04-25 11:11:10 +02002069
Paul Bakkere92f73d2014-04-18 14:08:26 +02002070Bugfix
2071 * Only iterate over actual certificates in ssl_write_certificate_request()
2072 (found by Matthew Page)
Paul Bakker4ffcd2f2014-04-25 11:44:12 +02002073 * Typos in platform.c and pkcs11.c (found by Daniel Phillips and Steffan
2074 Karger)
Paul Bakkerfdba4682014-04-25 11:48:35 +02002075 * cert_write app should use subject of issuer certificate as issuer of cert
Paul Bakker61885c72014-04-25 12:59:03 +02002076 * Fix false reject in padding check in ssl_decrypt_buf() for CBC
2077 ciphersuites, for full SSL frames of data.
Paul Bakkera7036632014-04-30 10:15:38 +02002078 * Improve interoperability by not writing extension length in ClientHello /
2079 ServerHello when no extensions are present (found by Matthew Page)
Paul Bakker24f37cc2014-04-30 13:33:35 +02002080 * rsa_check_pubkey() now allows an E up to N
Paul Bakkerf96f7b62014-04-30 16:02:38 +02002081 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
Paul Bakker33dc46b2014-04-30 16:11:39 +02002082 * mpi_fill_random() was creating numbers larger than requested on
2083 big-endian platform when size was not an integer number of limbs
Manuel Pégourié-Gonnardedc81ff2014-04-29 15:06:49 +02002084 * Fix dependencies issues in X.509 test suite.
Manuel Pégourié-Gonnard3a306b92014-04-29 15:11:17 +02002085 * Some parts of ssl_tls.c were compiled even when the module was disabled.
Markus Pfeiffera26a0052014-04-22 20:16:15 +00002086 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
Barry K. Nathancf975f52014-04-23 17:40:25 -07002087 * Fix detection of Clang on some Apple platforms with CMake
2088 (found by Barry K. Nathan)
Paul Bakkere92f73d2014-04-18 14:08:26 +02002089
Paul Bakker784b04f2014-04-11 15:33:59 +02002090= PolarSSL 1.3.6 released on 2014-04-11
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002091
Paul Bakker27e36d32014-04-08 12:33:37 +02002092Features
2093 * Support for the ALPN SSL extension
Paul Bakker1cfc4582014-04-09 15:25:13 +02002094 * Add option 'use_dev_random' to gen_key application
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002095 * Enable verification of the keyUsage extension for CA and leaf
Paul Bakker59366212014-04-09 15:55:20 +02002096 certificates (POLARSSL_X509_CHECK_KEY_USAGE)
Manuel Pégourié-Gonnardb7fff0f2014-04-11 11:32:39 +02002097 * Enable verification of the extendedKeyUsage extension
2098 (POLARSSL_X509_CHECK_EXTENDED_KEY_USAGE)
Paul Bakker27e36d32014-04-08 12:33:37 +02002099
Paul Bakker4984d3c2014-04-04 15:39:37 +02002100Changes
2101 * x509_crt_info() now prints information about parsed extensions as well
Manuel Pégourié-Gonnard2abed842014-04-08 12:40:15 +02002102 * pk_verify() now returns a specific error code when the signature is valid
2103 but shorter than the supplied length.
Manuel Pégourié-Gonnard0776a432014-04-11 12:25:45 +02002104 * Use UTC time to check certificate validity.
Manuel Pégourié-Gonnard9655e452014-04-11 12:29:49 +02002105 * Reject certificates with times not in UTC, per RFC 5280.
Paul Bakker4984d3c2014-04-04 15:39:37 +02002106
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002107Security
2108 * Avoid potential timing leak in ecdsa_sign() by blinding modular division.
2109 (Found by Watson Ladd.)
Manuel Pégourié-Gonnard8c045ef2014-04-08 11:55:03 +02002110 * The notAfter date of some certificates was no longer checked since 1.3.5.
2111 This affects certificates in the user-supplied chain except the top
2112 certificate. If the user-supplied chain contains only one certificates,
2113 it is not affected (ie, its notAfter date is properly checked).
Paul Bakker4224bc02014-04-08 14:36:50 +02002114 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2115 TrustInSoft)
Manuel Pégourié-Gonnarddd75c312014-03-31 11:55:42 +02002116
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002117Bugfix
2118 * The length of various ClientKeyExchange messages was not properly checked.
Manuel Pégourié-Gonnard6b0d2682014-03-25 11:24:43 +01002119 * Some example server programs were not sending the close_notify alert.
Paul Bakker75a28602014-03-31 12:08:17 +02002120 * Potential memory leak in mpi_exp_mod() when error occurs during
2121 calculation of RR.
Manuel Pégourié-Gonnard74bc68a2014-04-02 13:20:00 +02002122 * Fixed malloc/free default #define in platform.c (found by Gergely Budai).
Manuel Pégourié-Gonnarde4421112014-04-02 13:50:05 +02002123 * Fixed type which made POLARSSL_ENTROPY_FORCE_SHA256 uneffective (found by
2124 Gergely Budai).
Manuel Pégourié-Gonnard887aa5b2014-04-04 13:57:20 +02002125 * Fix #include path in ecdsa.h which wasn't accepted by some compilers.
2126 (found by Gergely Budai)
Shuo Chen95a0d112014-04-04 21:04:40 -07002127 * Fix compile errors when POLARSSL_ERROR_STRERROR_BC is undefined (found by
2128 Shuo Chen).
Manuel Pégourié-Gonnard7afdb882014-03-28 16:06:35 +01002129 * oid_get_numeric_string() used to truncate the output without returning an
2130 error if the output buffer was just 1 byte too small.
Manuel Pégourié-Gonnard3fec2202014-03-29 16:42:38 +01002131 * dhm_parse_dhm() (hence dhm_parse_dhmfile()) did not set dhm->len.
Manuel Pégourié-Gonnard01488752014-04-03 22:09:18 +02002132 * Calling pk_debug() on an RSA-alt key would segfault.
2133 * pk_get_size() and pk_get_len() were off by a factor 8 for RSA-alt keys.
Paul Bakker16300582014-04-11 13:28:43 +02002134 * Potential buffer overwrite in pem_write_buffer() because of low length
2135 indication (found by Thijs Alkemade)
Manuel Pégourié-Gonnard78848372014-04-10 17:45:07 +02002136 * EC curves constants, which should be only in ROM since 1.3.3, were also
2137 stored in RAM due to missing 'const's (found by Gergely Budai).
Manuel Pégourié-Gonnard969ccc62014-03-26 19:53:25 +01002138
Paul Bakker96d52652014-03-26 16:55:50 +01002139= PolarSSL 1.3.5 released on 2014-03-26
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002140Features
2141 * HMAC-DRBG as a separate module
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002142 * Option to set the Curve preference order (disabled by default)
Paul Bakker6a28e722014-02-06 13:41:55 +01002143 * Single Platform compatilibity layer (for memory / printf / fprintf)
Paul Bakkerf2561b32014-02-06 15:11:55 +01002144 * Ability to provide alternate timing implementation
Paul Bakker2ceda572014-02-06 15:55:25 +01002145 * Ability to force the entropy module to use SHA-256 as its basis
2146 (POLARSSL_ENTROPY_FORCE_SHA256)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002147 * Testing script ssl-opt.sh added for testing 'live' ssl option
2148 interoperability against OpenSSL and PolarSSL
Manuel Pégourié-Gonnard86b400f2014-03-19 16:55:29 +01002149 * Support for reading EC keys that use SpecifiedECDomain in some cases.
Paul Bakker66ff70d2014-03-26 11:54:05 +01002150 * Entropy module now supports seed writing and reading
Paul Bakker6a28e722014-02-06 13:41:55 +01002151
2152Changes
2153 * Deprecated the Memory layer
Paul Bakker47703a02014-02-06 15:01:20 +01002154 * entropy_add_source(), entropy_update_manual() and entropy_gather()
2155 now thread-safe if POLARSSL_THREADING_C defined
Manuel Pégourié-Gonnard14ed1a22014-03-11 10:16:25 +01002156 * Improvements to the CMake build system, contributed by Julian Ospald.
Manuel Pégourié-Gonnardbb8661e2014-03-14 09:21:20 +01002157 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2158 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
Paul Bakker6a8e7f82014-03-17 13:45:06 +01002159 * Revamped the compat.sh interoperatibility script to include support for
2160 testing against GnuTLS
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002161 * Deprecated ssl_set_own_cert_rsa() and ssl_set_own_cert_rsa_alt()
Paul Bakker674e0b02014-03-26 13:26:52 +01002162 * Improvements to tests/Makefile, contributed by Oden Eriksson.
Paul Bakker5fb8efe2014-02-05 15:54:34 +01002163
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002164Security
2165 * Forbid change of server certificate during renegotiation to prevent
Manuel Pégourié-Gonnardb2bf5a12014-03-25 16:28:12 +01002166 "triple handshake" attack when authentication mode is 'optional' (the
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002167 attack was already impossible when authentication is required).
Manuel Pégourié-Gonnard95337652014-03-10 13:15:18 +01002168 * Check notBefore timestamp of certificates and CRLs from the future.
Manuel Pégourié-Gonnard83cdffc2014-03-10 21:20:29 +01002169 * Forbid sequence number wrapping
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002170 * Fixed possible buffer overflow with overlong PSK
Paul Bakker91c61bc2014-03-26 14:06:55 +01002171 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2172 TrustInSoft)
Manuel Pégourié-Gonnard796c6f32014-03-10 09:34:49 +01002173
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002174Bugfix
2175 * ecp_gen_keypair() does more tries to prevent failure because of
2176 statistics
Manuel Pégourié-Gonnard7a2aba82014-03-25 16:37:27 +01002177 * Fixed bug in RSA PKCS#1 v1.5 "reversed" operations
Paul Bakkercd6d69a2014-02-06 15:43:21 +01002178 * Fixed testing with out-of-source builds using cmake
Manuel Pégourié-Gonnard6b1e2072014-02-12 10:14:54 +01002179 * Fixed version-major intolerance in server
Paul Bakker3d52ab72014-03-07 10:33:55 +01002180 * Fixed CMake symlinking on out-of-source builds
Manuel Pégourié-Gonnard29dcc0b2014-03-10 11:32:07 +01002181 * Fixed dependency issues in test suite
Manuel Pégourié-Gonnard844a4c02014-03-10 21:55:35 +01002182 * Programs rsa_sign_pss and rsa_verify_pss were not using PSS since 1.3.0
Alex Wilson73491422014-03-06 00:04:09 +10002183 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2184 Alex Wilson.)
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002185 * ssl_cache was creating entries when max_entries=0 if TIMING_C was enabled.
2186 * m_sleep() was sleeping twice too long on most Unix platforms.
Manuel Pégourié-Gonnard145dfcb2014-02-26 14:23:33 +01002187 * Fixed bug with session tickets and non-blocking I/O in the unlikely case
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002188 send() would return an EAGAIN error when sending the ticket.
Manuel Pégourié-Gonnard84c30c72014-02-26 17:38:55 +01002189 * ssl_cache was leaking memory when reusing a timed out entry containing a
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002190 client certificate.
Manuel Pégourié-Gonnardd701c9a2014-02-26 17:54:07 +01002191 * ssl_srv was leaking memory when client presented a timed out ticket
Paul Bakkerb0695ce2014-03-17 13:42:23 +01002192 containing a client certificate
Paul Bakker3d6504a2014-03-17 13:41:51 +01002193 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2194 out_ctr failed
Paul Bakker77f4f392014-03-26 15:28:55 +01002195 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2196 of one of them failed
Manuel Pégourié-Gonnardfdddac92014-03-25 15:58:35 +01002197 * Fix typo in rsa_copy() that impacted PKCS#1 v2 contexts
Paul Bakker5fff23b2014-03-26 15:34:54 +01002198 * x509_get_current_time() uses localtime_r() to prevent thread issues
Manuel Pégourié-Gonnard6e8e34d2014-01-28 19:30:56 +01002199
Paul Bakker2aca2412014-01-27 11:49:46 +01002200= PolarSSL 1.3.4 released on 2014-01-27
Paul Bakker3eb96732014-01-22 13:08:19 +01002201Features
Paul Bakker0ac99ca2014-01-22 13:08:44 +01002202 * Support for the Koblitz curves: secp192k1, secp224k1, secp256k1
Paul Bakker5862eee2014-01-22 14:18:03 +01002203 * Support for RIPEMD-160
Paul Bakker556efba2014-01-24 15:38:12 +01002204 * Support for AES CFB8 mode
Paul Bakkere6c2ddb2014-01-27 11:47:15 +01002205 * Support for deterministic ECDSA (RFC 6979)
Paul Bakker3eb96732014-01-22 13:08:19 +01002206
2207Bugfix
2208 * Potential memory leak in bignum_selftest()
2209 * Replaced expired test certificate
Paul Bakkerd75ba402014-01-24 16:11:17 +01002210 * ssl_mail_client now terminates lines with CRLF, instead of LF
Paul Bakkerb84582b2014-01-27 12:23:43 +01002211 * net module handles timeouts on blocking sockets better (found by Tilman
2212 Sauerbeck)
Paul Bakker2cb1a0c2014-01-27 13:36:23 +01002213 * Assembly format fixes in bn_mul.h
2214
2215Security
Paul Bakkerb84582b2014-01-27 12:23:43 +01002216 * Missing MPI_CHK calls added around unguarded mpi calls (found by
2217 TrustInSoft)
Paul Bakker3eb96732014-01-22 13:08:19 +01002218
Paul Bakker5bc07a32013-12-31 10:57:44 +01002219= PolarSSL 1.3.3 released on 2013-12-31
Paul Bakker014f1432013-12-02 14:54:01 +01002220Features
2221 * EC key generation support in gen_key app
Paul Bakker9dc53a92013-12-02 14:55:28 +01002222 * Support for adhering to client ciphersuite order preference
2223 (POLARSSL_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
Paul Bakker48d78a52013-12-05 16:11:38 +01002224 * Support for Curve25519
Paul Bakkerfdf94692013-12-17 13:09:31 +01002225 * Support for ECDH-RSA and ECDH-ECDSA key exchanges and ciphersuites
Paul Bakker5a607d22013-12-17 14:33:42 +01002226 * Support for IPv6 in the NET module
Paul Bakker23116fd2013-12-30 14:09:47 +01002227 * AES-NI support for AES, AES-GCM and AES key scheduling
Paul Bakkerf9c49532013-12-19 15:40:58 +01002228 * SSL Pthread-based server example added (ssl_pthread_server)
Paul Bakker014f1432013-12-02 14:54:01 +01002229
Paul Bakker7aa03752013-11-26 17:37:31 +01002230Changes
2231 * gen_prime() speedup
2232 * Speedup of ECP multiplication operation
2233 * Relaxed some SHA2 ciphersuite's version requirements
Paul Bakkerc3d0d072013-12-02 14:50:49 +01002234 * Dropped use of readdir_r() instead of readdir() with threading support
Paul Bakker4040d7e2013-12-02 14:52:57 +01002235 * More constant-time checks in the RSA module
Paul Bakkerb14817d2013-12-02 22:03:23 +01002236 * Split off curves from ecp.c into ecp_curves.c
Paul Bakker5ab68ba2013-12-17 13:10:48 +01002237 * Curves are now stored fully in ROM
Paul Bakkerc7387912013-12-31 10:32:50 +01002238 * Memory usage optimizations in ECP module
Paul Bakkera8fd3e32013-12-31 11:54:08 +01002239 * Removed POLARSSL_THREADING_DUMMY
Paul Bakker7aa03752013-11-26 17:37:31 +01002240
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002241Bugfix
Manuel Pégourié-Gonnard9a4a5ac2013-12-04 18:05:29 +01002242 * Fixed bug in mpi_set_bit() on platforms where t_uint is wider than int
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002243 * Fixed X.509 hostname comparison (with non-regular characters)
Paul Bakkera9a028e2013-11-21 17:31:06 +01002244 * SSL now gracefully handles missing RNG
Paul Bakker7aa03752013-11-26 17:37:31 +01002245 * Missing defines / cases for RSA_PSK key exchange
2246 * crypt_and_hash app checks MAC before final decryption
Paul Bakker6f0636a2013-12-16 15:24:05 +01002247 * Potential memory leak in ssl_ticket_keys_init()
Paul Bakkerf70fe812013-12-16 16:43:10 +01002248 * Memory leak in benchmark application
Paul Bakker1a56fc92013-12-19 13:51:24 +01002249 * Fixed x509_crt_parse_path() bug on Windows platforms
Paul Bakker6ea1a952013-12-31 11:16:03 +01002250 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2251 TrustInSoft)
Paul Bakker6992eb72013-12-31 11:35:16 +01002252 * Fixed potential overflow in certificate size verification in
2253 ssl_write_certificate() (found by TrustInSoft)
Paul Bakkerf2b4d862013-11-20 17:23:53 +01002254
Paul Bakker956c9e02013-12-19 14:42:28 +01002255Security
2256 * Possible remotely-triggered out-of-bounds memory access fixed (found by
2257 TrustInSoft)
2258
Paul Bakkerf4dc1862013-11-04 17:29:42 +01002259= PolarSSL 1.3.2 released on 2013-11-04
Paul Bakker08bb1872013-10-28 14:03:26 +01002260Features
2261 * PK tests added to test framework
Paul Bakker3f917e22013-10-28 14:16:59 +01002262 * Added optional optimization for NIST MODP curves (POLARSSL_ECP_NIST_OPTIM)
Paul Bakker16421222013-10-28 14:37:09 +01002263 * Support for Camellia-GCM mode and ciphersuites
Paul Bakker08bb1872013-10-28 14:03:26 +01002264
Paul Bakker7bc745b2013-10-28 14:39:49 +01002265Changes
2266 * Padding checks in cipher layer are now constant-time
Paul Bakkere1121b62013-10-31 14:37:37 +01002267 * Value comparisons in SSL layer are now constant-time
Paul Bakker7b0be682013-10-29 14:24:37 +01002268 * Support for serialNumber, postalAddress and postalCode in X509 names
Paul Bakkere1121b62013-10-31 14:37:37 +01002269 * SSL Renegotiation was refactored
Paul Bakker7bc745b2013-10-28 14:39:49 +01002270
Paul Bakker677377f2013-10-28 12:54:26 +01002271Bugfix
Paul Bakker16421222013-10-28 14:37:09 +01002272 * More stringent checks in cipher layer
Paul Bakker677377f2013-10-28 12:54:26 +01002273 * Server does not send out extensions not advertised by client
Paul Bakker45a2c8d2013-10-28 12:57:08 +01002274 * Prevent possible alignment warnings on casting from char * to 'aligned *'
Paul Bakker68037da2013-10-28 14:02:40 +01002275 * Misc fixes and additions to dependency checks
Paul Bakker50dc8502013-10-28 21:19:10 +01002276 * Const correctness
Paul Bakker93c6aa42013-10-28 22:28:09 +01002277 * cert_write with selfsign should use issuer_name as subject_name
Manuel Pégourié-Gonnard178d9ba2013-10-29 10:45:28 +01002278 * Fix ECDSA corner case: missing reduction mod N (found by DualTachyon)
Paul Bakkerfa6a6202013-10-28 18:48:30 +01002279 * Defines to handle UEFI environment under MSVC
Paul Bakkere1121b62013-10-31 14:37:37 +01002280 * Server-side initiated renegotiations send HelloRequest
Paul Bakker677377f2013-10-28 12:54:26 +01002281
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002282= PolarSSL 1.3.1 released on 2013-10-15
Paul Bakkerb799dec2013-10-11 10:03:27 +02002283Features
2284 * Support for Brainpool curves and TLS ciphersuites (RFC 7027)
Paul Bakker376e8152013-10-15 12:44:23 +02002285 * Support for ECDHE-PSK key-exchange and ciphersuites
Paul Bakkerf34673e2013-10-15 12:46:17 +02002286 * Support for RSA-PSK key-exchange and ciphersuites
Paul Bakkerb799dec2013-10-11 10:03:27 +02002287
Paul Bakkerddba8822013-10-11 09:21:56 +02002288Changes
2289 * RSA blinding locks for a smaller amount of time
Paul Bakker16770332013-10-11 09:59:44 +02002290 * TLS compression only allocates working buffer once
Paul Bakkerbe089b02013-10-14 15:51:50 +02002291 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
Paul Bakkera7ea6a52013-10-15 11:55:10 +02002292 * config.h is more script-friendly
Paul Bakkerddba8822013-10-11 09:21:56 +02002293
2294Bugfix
2295 * Missing MSVC defines added
2296 * Compile errors with POLARSSL_RSA_NO_CRT
2297 * Header files with 'polarssl/'
Paul Bakkerfcc17212013-10-11 09:36:52 +02002298 * Const correctness
Paul Bakkerd61cc3b2013-10-11 09:38:49 +02002299 * Possible naming collision in dhm_context
Paul Bakker4aa40d42013-10-11 10:49:24 +02002300 * Better support for MSVC
Paul Bakkerb7c13122013-10-11 10:51:32 +02002301 * threading_set_alt() name
Paul Bakker5191e922013-10-11 10:54:28 +02002302 * Added missing x509write_crt_set_version()
Paul Bakkerddba8822013-10-11 09:21:56 +02002303
Paul Bakker5c17ccd2013-10-15 13:12:41 +02002304= PolarSSL 1.3.0 released on 2013-10-01
Paul Bakker41c83d32013-03-20 14:39:14 +01002305Features
2306 * Elliptic Curve Cryptography module added
2307 * Elliptic Curve Diffie Hellman module added
2308 * Ephemeral Elliptic Curve Diffie Hellman support for SSL/TLS
2309 (ECDHE-based ciphersuites)
Paul Bakkerc8676782013-08-28 12:15:11 +02002310 * Ephemeral Elliptic Curve Digital Signature Algorithm support for SSL/TLS
2311 (ECDSA-based ciphersuites)
Paul Bakker8f4ddae2013-04-15 15:09:54 +02002312 * Ability to specify allowed ciphersuites based on the protocol version.
Paul Bakkerb91c2b52013-04-19 16:05:16 +02002313 * PSK and DHE-PSK based ciphersuites added
Paul Bakker6e339b52013-07-03 13:37:05 +02002314 * Memory allocation abstraction layer added
2315 * Buffer-based memory allocator added (no malloc() / free() / HEAP usage)
Paul Bakker2466d932013-09-28 14:40:38 +02002316 * Threading abstraction layer added (dummy / pthread / alternate)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002317 * Public Key abstraction layer added
Paul Bakkerf85778e2013-07-19 14:55:25 +02002318 * Parsing Elliptic Curve keys
2319 * Parsing Elliptic Curve certificates
2320 * Support for max_fragment_length extension (RFC 6066)
2321 * Support for truncated_hmac extension (RFC 6066)
Paul Bakkerda4d1c32013-08-14 12:24:34 +02002322 * Support for zeros-and-length (ANSI X.923) padding, one-and-zeros
2323 (ISO/IEC 7816-4) padding and zero padding in the cipher layer
Paul Bakker936539a2013-08-14 13:49:20 +02002324 * Support for session tickets (RFC 5077)
Paul Bakkerca174fe2013-08-28 16:31:30 +02002325 * Certificate Request (CSR) generation with extensions (key_usage,
2326 ns_cert_type)
Paul Bakker7fb4a792013-09-12 12:00:52 +02002327 * X509 Certificate writing with extensions (basic_constraints,
2328 issuer_key_identifier, etc)
Paul Bakker6ec34fb2013-09-10 14:53:46 +02002329 * Optional blinding for RSA, DHM and EC
Paul Bakker8b817dc2013-09-25 18:03:58 +02002330 * Support for multiple active certificate / key pairs in SSL servers for
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002331 the same host (Not to be confused with SNI!)
Paul Bakker41c83d32013-03-20 14:39:14 +01002332
Paul Bakker9b5798d2013-03-13 13:53:00 +01002333Changes
Paul Bakkerd2f068e2013-08-27 21:19:20 +02002334 * Ability to enable / disable SSL v3 / TLS 1.0 / TLS 1.1 / TLS 1.2
2335 individually
Paul Bakker68884e32013-01-07 18:20:04 +01002336 * Introduced separate SSL Ciphersuites module that is based on
2337 Cipher and MD information
Paul Bakker9b5798d2013-03-13 13:53:00 +01002338 * Internals for SSL module adapted to have separate IV pointer that is
2339 dynamically set (Better support for hardware acceleration)
Paul Bakkerc70b9822013-04-07 22:00:46 +02002340 * Moved all OID functionality to a separate module. RSA function
2341 prototypes for the RSA sign and verify functions changed as a result
Paul Bakkerb9d3cfa2013-06-26 15:07:16 +02002342 * Split up the GCM module into a starts/update/finish cycle
Paul Bakker2fbefde2013-06-29 16:01:15 +02002343 * Client and server now filter sent and accepted ciphersuites on minimum
2344 and maximum protocol version
Paul Bakker0be444a2013-08-27 21:55:01 +02002345 * Ability to disable server_name extension (RFC 6066)
Paul Bakkere2ab84f2013-06-29 18:24:32 +02002346 * Renamed error_strerror() to the less conflicting polarssl_strerror()
2347 (Ability to keep old as well with POLARSSL_ERROR_STRERROR_BC)
Paul Bakker9e36f042013-06-30 14:34:05 +02002348 * SHA2 renamed to SHA256, SHA4 renamed to SHA512 and functions accordingly
Paul Bakker548957d2013-08-30 10:30:02 +02002349 * All RSA operations require a random generator for blinding purposes
Paul Bakker45f21c72013-09-18 15:33:49 +02002350 * X509 core refactored
2351 * x509_crt_verify() now case insensitive for cn (RFC 6125 6.4)
Paul Bakker5ad403f2013-09-18 21:21:30 +02002352 * Also compiles / runs without time-based functions (!POLARSSL_HAVE_TIME)
Paul Bakkerc27c4e22013-09-23 15:01:36 +02002353 * Support faulty X509 v1 certificates with extensions
2354 (POLARSSL_X509_ALLOW_EXTENSIONS_NON_V3)
Paul Bakker9b5798d2013-03-13 13:53:00 +01002355
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002356Bugfix
Paul Bakker73d44312013-05-22 13:56:26 +02002357 * Fixed parse error in ssl_parse_certificate_request()
Paul Bakkerabf2f8f2013-06-30 14:57:46 +02002358 * zlib compression/decompression skipped on empty blocks
Paul Bakker1e6a1752013-07-26 14:10:22 +02002359 * Support for AIX header locations in net.c module
Paul Bakker003dbad2013-09-09 17:26:14 +02002360 * Fixed file descriptor leaks
Paul Bakkereff2e6d2013-04-11 17:13:22 +02002361
Paul Bakkeraab30c12013-08-30 11:00:25 +02002362Security
2363 * RSA blinding on CRT operations to counter timing attacks
2364 (found by Cyril Arnaud and Pierre-Alain Fouque)
2365
Manuel Pégourié-Gonnard7b124922015-04-30 10:16:19 +02002366
2367= Version 1.2.14 released 2015-05-??
2368
2369Security
2370 * Fix potential invalid memory read in the server, that allows a client to
2371 crash it remotely (found by Caj Larsson).
2372 * Fix potential invalid memory read in certificate parsing, that allows a
2373 client to crash the server remotely if client authentication is enabled
2374 (found using Codenomicon Defensics).
2375 * Add countermeasure against "Lucky 13 strikes back" cache-based attack,
2376 https://dl.acm.org/citation.cfm?id=2714625
2377
2378Bugfix
2379 * Fix bug in Via Padlock support (found by Nikos Mavrogiannopoulos).
2380 * Fix hardclock() (only used in the benchmarking program) with some
2381 versions of mingw64 (found by kxjhlele).
2382 * Fix warnings from mingw64 in timing.c (found by kxjklele).
2383 * Fix potential unintended sign extension in asn1_get_len() on 64-bit
2384 platforms (found with Coverity Scan).
2385
2386= Version 1.2.13 released 2015-02-16
2387Note: Although PolarSSL has been renamed to mbed TLS, no changes reflecting
2388 this will be made in the 1.2 branch at this point.
2389
2390Security
2391 * Fix remotely-triggerable uninitialised pointer dereference caused by
2392 crafted X.509 certificate (TLS server is not affected if it doesn't ask
2393 for a client certificate) (found using Codenomicon Defensics).
2394 * Fix remotely-triggerable memory leak caused by crafted X.509 certificates
2395 (TLS server is not affected if it doesn't ask for a client certificate)
2396 (found using Codenomicon Defensics).
2397 * Fix potential stack overflow while parsing crafted X.509 certificates
2398 (TLS server is not affected if it doesn't ask for a client certificate)
2399 found using Codenomicon Defensics).
2400 * Fix buffer overread of size 1 when parsing crafted X.509 certificates
2401 (TLS server is not affected if it doesn't ask for a client certificate).
2402
2403Bugfix
2404 * Fix potential undefined behaviour in Camellia.
2405 * Fix memory leaks in PKCS#5 and PKCS#12.
2406 * Stack buffer overflow if ctr_drbg_update() is called with too large
2407 add_len (found by Jean-Philippe Aumasson) (not triggerable remotely).
2408 * Fix bug in MPI/bignum on s390/s390x (reported by Dan Horák) (introduced
2409 in 1.2.12).
2410 * Fix unchecked return code in x509_crt_parse_path() on Windows (found by
2411 Peter Vaskovic).
2412 * Fix assembly selection for MIPS64 (thanks to James Cowgill).
2413 * ssl_get_verify_result() now works even if the handshake was aborted due
2414 to a failed verification (found by Fredrik Axelsson).
2415 * Skip writing and parsing signature_algorithm extension if none of the
2416 key exchanges enabled needs certificates. This fixes a possible interop
2417 issue with some servers when a zero-length extension was sent. (Reported
2418 by Peter Dettman.)
2419 * On a 0-length input, base64_encode() did not correctly set output length
2420 (found by Hendrik van den Boogaard).
2421
2422Changes
2423 * Blind RSA private operations even when POLARSSL_RSA_NO_CRT is defined.
2424 * Forbid repeated extensions in X.509 certificates.
2425 * Add compile-time option POLARSSL_X509_MAX_INTERMEDIATE_CA to limit the
2426 length of an X.509 verification chain (default = 8).
Paul Bakkera6c5ea22014-10-24 16:26:29 +02002427= Version 1.2.12 released 2014-10-24
2428
2429Security
2430 * Remotely-triggerable memory leak when parsing some X.509 certificates
2431 (server is not affected if it doesn't ask for a client certificate).
2432 (Found using Codenomicon Defensics.)
2433
2434Bugfix
2435 * Fix potential bad read in parsing ServerHello (found by Adrien
2436 Vialletelle).
2437 * ssl_close_notify() could send more than one message in some circumstances
2438 with non-blocking I/O.
2439 * x509_crt_parse() did not increase total_failed on PEM error
2440 * Fix compiler warnings on iOS (found by Sander Niemeijer).
2441 * Don't print uninitialised buffer in ssl_mail_client (found by Marc Abel).
2442 * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
2443 * ssl_read() could return non-application data records on server while
2444 renegotation was pending, and on client when a HelloRequest was received.
2445 * Fix warnings from Clang's scan-build (contributed by Alfred Klomp).
2446
2447Changes
2448 * X.509 certificates with more than one AttributeTypeAndValue per
2449 RelativeDistinguishedName are not accepted any more.
2450 * ssl_read() now returns POLARSSL_ERR_NET_WANT_READ rather than
2451 POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE on harmless alerts.
2452 * Accept spaces at end of line or end of buffer in base64_decode().
2453
Paul Bakker0ae5a3d2014-07-11 11:28:30 +02002454= Version 1.2.11 released 2014-07-11
2455Features
2456 * Entropy module now supports seed writing and reading
2457
2458Changes
2459 * Introduced POLARSSL_HAVE_READDIR_R for systems without it
2460 * Improvements to the CMake build system, contributed by Julian Ospald.
2461 * Work around a bug of the version of Clang shipped by Apple with Mavericks
2462 that prevented bignum.c from compiling. (Reported by Rafael Baptista.)
2463 * Improvements to tests/Makefile, contributed by Oden Eriksson.
2464 * Use UTC time to check certificate validity.
2465 * Reject certificates with times not in UTC, per RFC 5280.
2466 * Migrate zeroizing of data to polarssl_zeroize() instead of memset()
2467 against unwanted compiler optimizations
2468
2469Security
2470 * Forbid change of server certificate during renegotiation to prevent
2471 "triple handshake" attack when authentication mode is optional (the
2472 attack was already impossible when authentication is required).
2473 * Check notBefore timestamp of certificates and CRLs from the future.
2474 * Forbid sequence number wrapping
2475 * Prevent potential NULL pointer dereference in ssl_read_record() (found by
2476 TrustInSoft)
2477 * Fix length checking for AEAD ciphersuites (found by Codenomicon).
2478 It was possible to crash the server (and client) using crafted messages
2479 when a GCM suite was chosen.
2480
2481Bugfix
2482 * Fixed X.509 hostname comparison (with non-regular characters)
2483 * SSL now gracefully handles missing RNG
2484 * crypt_and_hash app checks MAC before final decryption
2485 * Fixed x509_crt_parse_path() bug on Windows platforms
2486 * Added missing MPI_CHK() around some statements in mpi_div_mpi() (found by
2487 TrustInSoft)
2488 * Fixed potential overflow in certificate size verification in
2489 ssl_write_certificate() (found by TrustInSoft)
2490 * Fix ASM format in bn_mul.h
2491 * Potential memory leak in bignum_selftest()
2492 * Replaced expired test certificate
2493 * ssl_mail_client now terminates lines with CRLF, instead of LF
2494 * Fix bug in RSA PKCS#1 v1.5 "reversed" operations
2495 * Fixed testing with out-of-source builds using cmake
2496 * Fixed version-major intolerance in server
2497 * Fixed CMake symlinking on out-of-source builds
2498 * Bignum's MIPS-32 assembly was used on MIPS-64, causing chaos. (Found by
2499 Alex Wilson.)
2500 * ssl_init() was leaving a dirty pointer in ssl_context if malloc of
2501 out_ctr failed
2502 * ssl_handshake_init() was leaving dirty pointers in subcontexts if malloc
2503 of one of them failed
2504 * x509_get_current_time() uses localtime_r() to prevent thread issues
2505 * Some example server programs were not sending the close_notify alert.
2506 * Potential memory leak in mpi_exp_mod() when error occurs during
2507 calculation of RR.
2508 * Improve interoperability by not writing extension length in ClientHello
2509 when no extensions are present (found by Matthew Page)
2510 * rsa_check_pubkey() now allows an E up to N
2511 * On OpenBSD, use arc4random_buf() instead of rand() to prevent warnings
2512 * mpi_fill_random() was creating numbers larger than requested on
2513 big-endian platform when size was not an integer number of limbs
2514 * Fix detection of DragonflyBSD in net.c (found by Markus Pfeiffer)
2515 * Stricter check on SSL ClientHello internal sizes compared to actual packet
2516 size (found by TrustInSoft)
2517 * Fix preprocessor checks for bn_mul PPC asm (found by Barry K. Nathan).
2518 * Use \n\t rather than semicolons for bn_mul asm, since some assemblers
2519 interpret semicolons as comment delimiters (found by Barry K. Nathan).
2520 * Disable broken Sparc64 bn_mul assembly (found by Florian Obser).
2521 * Fix base64_decode() to return and check length correctly (in case of
2522 tight buffers)
2523
Paul Bakker3a2c0562013-10-07 16:22:05 +02002524= Version 1.2.10 released 2013-10-07
2525Changes
2526 * Changed RSA blinding to a slower but thread-safe version
2527
2528Bugfix
2529 * Fixed memory leak in RSA as a result of introduction of blinding
2530 * Fixed ssl_pkcs11_decrypt() prototype
2531 * Fixed MSVC project files
2532
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002533= Version 1.2.9 released 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002534Changes
2535 * x509_verify() now case insensitive for cn (RFC 6125 6.4)
2536
2537Bugfix
2538 * Fixed potential memory leak when failing to resume a session
2539 * Fixed potential file descriptor leaks (found by Remi Gacogne)
2540 * Minor fixes
2541
2542Security
2543 * Fixed potential heap buffer overflow on large hostname setting
2544 * Fixed potential negative value misinterpretation in load_file()
2545 * RSA blinding on CRT operations to counter timing attacks
2546 (found by Cyril Arnaud and Pierre-Alain Fouque)
2547
Paul Bakkerde656232013-06-24 19:07:34 +02002548= Version 1.2.8 released 2013-06-19
2549Features
2550 * Parsing of PKCS#8 encrypted private key files
2551 * PKCS#12 PBE and derivation functions
2552 * Centralized module option values in config.h to allow user-defined
2553 settings without editing header files by using POLARSSL_CONFIG_OPTIONS
2554
2555Changes
2556 * HAVEGE random generator disabled by default
2557 * Internally split up x509parse_key() into a (PEM) handler function
2558 and specific DER parser functions for the PKCS#1 and unencrypted
2559 PKCS#8 private key formats
2560 * Added mechanism to provide alternative implementations for all
2561 symmetric cipher and hash algorithms (e.g. POLARSSL_AES_ALT in
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002562 config.h)
Paul Bakkerde656232013-06-24 19:07:34 +02002563 * PKCS#5 module added. Moved PBKDF2 functionality inside and deprecated
2564 old PBKDF2 module
2565
2566Bugfix
2567 * Secure renegotiation extension should only be sent in case client
2568 supports secure renegotiation
2569 * Fixed offset for cert_type list in ssl_parse_certificate_request()
2570 * Fixed const correctness issues that have no impact on the ABI
2571 * x509parse_crt() now better handles PEM error situations
2572 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2573 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002574 certificates
Paul Bakkerde656232013-06-24 19:07:34 +02002575 * x509parse_crtpath() is now reentrant and uses more portable stat()
2576 * Fixed bignum.c and bn_mul.h to support Thumb2 and LLVM compiler
2577 * Fixed values for 2-key Triple DES in cipher layer
2578 * ssl_write_certificate_request() can handle empty ca_chain
2579
2580Security
2581 * A possible DoS during the SSL Handshake, due to faulty parsing of
2582 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2583
2584= Version 1.2.7 released 2013-04-13
2585Features
2586 * Ability to specify allowed ciphersuites based on the protocol version.
2587
2588Changes
2589 * Default Blowfish keysize is now 128-bits
2590 * Test suites made smaller to accommodate Raspberry Pi
2591
2592Bugfix
2593 * Fix for MPI assembly for ARM
2594 * GCM adapted to support sizes > 2^29
2595
Paul Bakker90f042d2013-03-11 11:38:44 +01002596= Version 1.2.6 released 2013-03-11
Paul Bakkerc0463502013-02-14 11:19:38 +01002597Bugfix
2598 * Fixed memory leak in ssl_free() and ssl_reset() for active session
Paul Bakker3d2dc0f2013-02-27 14:52:37 +01002599 * Corrected GCM counter incrementation to use only 32-bits instead of
2600 128-bits (found by Yawning Angel)
Paul Bakkere3e4a592013-02-28 10:20:53 +01002601 * Fixes for 64-bit compilation with MS Visual Studio
Paul Bakker37286a52013-03-06 16:55:11 +01002602 * Fixed net_bind() for specified IP addresses on little endian systems
Paul Bakkerfb1cbd32013-03-06 18:14:52 +01002603 * Fixed assembly code for ARM (Thumb and regular) for some compilers
Paul Bakkerc0463502013-02-14 11:19:38 +01002604
Paul Bakkerb3869132013-02-28 17:21:01 +01002605Changes
2606 * Internally split up rsa_pkcs1_encrypt(), rsa_pkcs1_decrypt(),
2607 rsa_pkcs1_sign() and rsa_pkcs1_verify() to separate PKCS#1 v1.5 and
2608 PKCS#1 v2.1 functions
Paul Bakkera43231c2013-02-28 17:33:49 +01002609 * Added support for custom labels when using rsa_rsaes_oaep_encrypt()
2610 or rsa_rsaes_oaep_decrypt()
Paul Bakker78a8c712013-03-06 17:01:52 +01002611 * Re-added handling for SSLv2 Client Hello when the define
2612 POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is set
Paul Bakkere81beda2013-03-06 17:40:46 +01002613 * The SSL session cache module (ssl_cache) now also retains peer_cert
2614 information (not the entire chain)
Paul Bakkerb3869132013-02-28 17:21:01 +01002615
Paul Bakkere47b34b2013-02-27 14:48:00 +01002616Security
2617 * Removed further timing differences during SSL message decryption in
2618 ssl_decrypt_buf()
Paul Bakker8804f692013-02-28 18:06:26 +01002619 * Removed timing differences due to bad padding from
2620 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2621 operations
Paul Bakkere47b34b2013-02-27 14:48:00 +01002622
Paul Bakkerc7a2da42013-02-02 19:23:57 +01002623= Version 1.2.5 released 2013-02-02
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002624Changes
2625 * Allow enabling of dummy error_strerror() to support some use-cases
Paul Bakkerd66f0702013-01-31 16:57:45 +01002626 * Debug messages about padding errors during SSL message decryption are
Hanno Becker01a0e072017-07-26 11:49:40 +01002627 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
Paul Bakker40865c82013-01-31 17:13:13 +01002628 * Sending of security-relevant alert messages that do not break
2629 interoperability can be switched on/off with the flag
Paul Bakkera35aa542013-03-06 17:06:21 +01002630 POLARSSL_SSL_ALL_ALERT_MESSAGES
Paul Bakker8fe40dc2013-02-02 12:43:08 +01002631
Paul Bakker45829992013-01-03 14:52:21 +01002632Security
2633 * Removed timing differences during SSL message decryption in
2634 ssl_decrypt_buf() due to badly formatted padding
2635
Paul Bakker14c56a32013-01-25 17:11:37 +01002636= Version 1.2.4 released 2013-01-25
Paul Bakker1961b702013-01-25 14:49:24 +01002637Changes
Paul Bakker68884e32013-01-07 18:20:04 +01002638 * More advanced SSL ciphersuite representation and moved to more dynamic
2639 SSL core
Paul Bakker1961b702013-01-25 14:49:24 +01002640 * Added ssl_handshake_step() to allow single stepping the handshake process
2641
Paul Bakker40628ba2013-01-03 10:50:31 +01002642Bugfix
2643 * Memory leak when using RSA_PKCS_V21 operations fixed
Paul Bakker21dca692013-01-03 11:41:08 +01002644 * Handle future version properly in ssl_write_certificate_request()
Paul Bakker9c94cdd2013-01-22 13:45:33 +01002645 * Correctly handle CertificateRequest message in client for <= TLS 1.1
2646 without DN list
Paul Bakker40628ba2013-01-03 10:50:31 +01002647
Paul Bakkerfb1ba782012-11-26 16:28:25 +01002648= Version 1.2.3 released 2012-11-26
2649Bugfix
2650 * Server not always sending correct CertificateRequest message
2651
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002652= Version 1.2.2 released 2012-11-24
Paul Bakkere667c982012-11-20 13:50:22 +01002653Changes
2654 * Added p_hw_data to ssl_context for context specific hardware acceleration
2655 data
Hanno Becker01a0e072017-07-26 11:49:40 +01002656 * During verify trust-CA is only checked for expiration and CRL presence
Paul Bakkere667c982012-11-20 13:50:22 +01002657
Paul Bakker7c90da92012-11-23 14:02:40 +01002658Bugfixes
Paul Bakkerdf5069c2012-11-24 12:20:19 +01002659 * Fixed client authentication compatibility
2660 * Fixed dependency on POLARSSL_SHA4_C in SSL modules
Paul Bakker7c90da92012-11-23 14:02:40 +01002661
Paul Bakker14926332012-11-20 10:58:09 +01002662= Version 1.2.1 released 2012-11-20
Paul Bakker34d8dbc2012-11-14 12:11:38 +00002663Changes
2664 * Depth that the certificate verify callback receives is now numbered
2665 bottom-up (Peer cert depth is 0)
2666
Paul Bakker7a2538e2012-11-02 10:59:36 +00002667Bugfixes
2668 * Fixes for MSVC6
Paul Bakkerd9374b02012-11-02 11:02:58 +00002669 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
Paul Bakkerf02c5642012-11-13 10:25:21 +00002670 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2671 Pégourié-Gonnard)
Manuel Pégourié-Gonnarde44ec102012-11-17 12:42:51 +01002672 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2673 Pégourié-Gonnard)
Paul Bakker9daf0d02012-11-13 12:13:27 +00002674 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
Paul Bakker7a2538e2012-11-02 10:59:36 +00002675
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002676= Version 1.2.0 released 2012-10-31
Paul Bakkerfab5c822012-02-06 16:45:10 +00002677Features
2678 * Added support for NULL cipher (POLARSSL_CIPHER_NULL_CIPHER) and weak
2679 ciphersuites (POLARSSL_ENABLE_WEAK_CIPHERSUITES). They are disabled by
2680 default!
Paul Bakkera8cd2392012-02-11 16:09:32 +00002681 * Added support for wildcard certificates
2682 * Added support for multi-domain certificates through the X509 Subject
2683 Alternative Name extension
Paul Bakkerbdb912d2012-02-13 23:11:30 +00002684 * Added preliminary ASN.1 buffer writing support
2685 * Added preliminary X509 Certificate Request writing support
2686 * Added key_app_writer example application
2687 * Added cert_req example application
Paul Bakker89e80c92012-03-20 13:50:09 +00002688 * Added base Galois Counter Mode (GCM) for AES
Paul Bakker48916f92012-09-16 19:57:18 +00002689 * Added TLS 1.2 support (RFC 5246)
Paul Bakkerca4ab492012-04-18 14:23:57 +00002690 * Added GCM suites to TLS 1.2 (RFC 5288)
Paul Bakker01cc3942012-05-08 08:36:15 +00002691 * Added commandline error code convertor (util/strerror)
Paul Bakker05ef8352012-05-08 09:17:57 +00002692 * Added support for Hardware Acceleration hooking in SSL/TLS
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002693 * Added OpenSSL / PolarSSL compatibility script (tests/compat.sh) and
Paul Bakkerc9c5df92012-10-31 13:55:27 +00002694 example application (programs/ssl/o_p_test) (requires OpenSSL)
Paul Bakker8d914582012-06-04 12:46:42 +00002695 * Added X509 CA Path support
Paul Bakker4f9a7bb2012-07-02 08:36:36 +00002696 * Added Thumb assembly optimizations
Paul Bakker2770fbd2012-07-03 13:30:23 +00002697 * Added DEFLATE compression support as per RFC3749 (requires zlib)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002698 * Added blowfish algorithm (Generic and cipher layer)
Paul Bakkerf518b162012-08-23 13:03:18 +00002699 * Added PKCS#5 PBKDF2 key derivation function
Paul Bakker48916f92012-09-16 19:57:18 +00002700 * Added Secure Renegotiation (RFC 5746)
Paul Bakker29b64762012-09-25 09:36:44 +00002701 * Added predefined DHM groups from RFC 5114
Paul Bakker0a597072012-09-25 21:55:46 +00002702 * Added simple SSL session cache implementation
Paul Bakker5701cdc2012-09-27 21:49:42 +00002703 * Added ServerName extension parsing (SNI) at server side
Paul Bakker1d29fb52012-09-28 13:28:45 +00002704 * Added option to add minimum accepted SSL/TLS protocol version
Paul Bakkerfab5c822012-02-06 16:45:10 +00002705
Paul Bakker1504af52012-02-11 16:17:43 +00002706Changes
2707 * Removed redundant POLARSSL_DEBUG_MSG define
Paul Bakker048d04e2012-02-12 17:31:04 +00002708 * AES code only check for Padlock once
Paul Bakker6b906e52012-05-08 12:01:43 +00002709 * Fixed const-correctness mpi_get_bit()
2710 * Documentation for mpi_lsb() and mpi_msb()
Paul Bakker186751d2012-05-08 13:16:14 +00002711 * Moved out_msg to out_hdr + 32 to support hardware acceleration
Paul Bakker4d2c1242012-05-10 14:12:46 +00002712 * Changed certificate verify behaviour to comply with RFC 6125 section 6.3
Paul Bakker5b377842012-05-16 07:57:36 +00002713 to not match CN if subjectAltName extension is present (Closes ticket #56)
Paul Bakker6132d0a2012-07-04 17:10:40 +00002714 * Cipher layer cipher_mode_t POLARSSL_MODE_CFB128 is renamed to
2715 POLARSSL_MODE_CFB, to also handle different block size CFB modes.
Paul Bakkerec636f32012-09-09 19:17:02 +00002716 * Removed handling for SSLv2 Client Hello (as per RFC 5246 recommendation)
Paul Bakker0a597072012-09-25 21:55:46 +00002717 * Revamped session resumption handling
Paul Bakkereb2c6582012-09-27 19:15:01 +00002718 * Generalized external private key implementation handling (like PKCS#11)
2719 in SSL/TLS
Paul Bakker915275b2012-09-28 07:10:55 +00002720 * Revamped x509_verify() and the SSL f_vrfy callback implementations
Paul Bakker5c2364c2012-10-01 14:41:15 +00002721 * Moved from unsigned long to fixed width uint32_t types throughout code
Paul Bakker645ce3a2012-10-31 12:32:41 +00002722 * Renamed ciphersuites naming scheme to IANA reserved names
Paul Bakker1504af52012-02-11 16:17:43 +00002723
Paul Bakker37824582012-03-22 14:10:22 +00002724Bugfix
Paul Bakker7beceb22012-03-22 14:19:49 +00002725 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2726 Hui Dong)
Paul Bakker430ffbe2012-05-01 08:14:20 +00002727 * Fixed potential heap corruption in x509_name allocation
Paul Bakker5b377842012-05-16 07:57:36 +00002728 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
Paul Bakkerf6198c12012-05-16 08:02:29 +00002729 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2730 #52)
Paul Bakkere6ee41f2012-05-19 08:43:48 +00002731 * Handle encryption with private key and decryption with public key as per
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002732 RFC 2313
Paul Bakkercefb3962012-06-27 11:51:09 +00002733 * Handle empty certificate subject names
Paul Bakker535e97d2012-08-23 10:49:55 +00002734 * Prevent reading over buffer boundaries on X509 certificate parsing
Paul Bakkerd4c2bd72012-09-16 21:35:30 +00002735 * mpi_add_abs() now correctly handles adding short numbers to long numbers
Paul Bakker995a2152012-09-25 08:19:56 +00002736 with carry rollover (found by Ruslan Yushchenko)
Paul Bakkerb00ca422012-09-25 12:10:00 +00002737 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
Paul Bakker4f024b72012-10-30 07:29:57 +00002738 * Fixed MPI assembly for SPARC64 platform
Paul Bakker37824582012-03-22 14:10:22 +00002739
Paul Bakker452d5322012-04-05 12:07:34 +00002740Security
Paul Bakker3c16db92012-07-05 13:58:08 +00002741 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2742 Vanderbeken)
Paul Bakker452d5322012-04-05 12:07:34 +00002743
Paul Bakkerd93d28e2013-10-01 10:12:42 +02002744= Version 1.1.8 released on 2013-10-01
Paul Bakkerc13aab12013-09-26 10:12:19 +02002745Bugfix
2746 * Fixed potential memory leak when failing to resume a session
2747 * Fixed potential file descriptor leaks
2748
2749Security
2750 * Potential buffer-overflow for ssl_read_record() (independently found by
2751 both TrustInSoft and Paul Brodeur of Leviathan Security Group)
2752 * Potential negative value misinterpretation in load_file()
2753 * Potential heap buffer overflow on large hostname setting
2754
Paul Bakker248fff52013-06-24 19:08:50 +02002755= Version 1.1.7 released on 2013-06-19
2756Changes
2757 * HAVEGE random generator disabled by default
2758
2759Bugfix
2760 * x509parse_crt() now better handles PEM error situations
2761 * ssl_parse_certificate() now calls x509parse_crt_der() directly
2762 instead of the x509parse_crt() wrapper that can also parse PEM
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002763 certificates
Paul Bakker248fff52013-06-24 19:08:50 +02002764 * Fixed values for 2-key Triple DES in cipher layer
2765 * ssl_write_certificate_request() can handle empty ca_chain
2766
2767Security
2768 * A possible DoS during the SSL Handshake, due to faulty parsing of
2769 PEM-encoded certificates has been fixed (found by Jack Lloyd)
2770
2771= Version 1.1.6 released on 2013-03-11
2772Bugfix
2773 * Fixed net_bind() for specified IP addresses on little endian systems
2774
2775Changes
2776 * Allow enabling of dummy error_strerror() to support some use-cases
2777 * Debug messages about padding errors during SSL message decryption are
2778 disabled by default and can be enabled with POLARSSL_SSL_DEBUG_ALL
2779
2780Security
2781 * Removed timing differences during SSL message decryption in
2782 ssl_decrypt_buf()
2783 * Removed timing differences due to bad padding from
2784 rsa_rsaes_pkcs1_v15_decrypt() and rsa_pkcs1_decrypt() for PKCS#1 v1.5
2785 operations
2786
Paul Bakker9d2bb652013-01-25 16:07:49 +01002787= Version 1.1.5 released on 2013-01-16
2788Bugfix
2789 * Fixed MPI assembly for SPARC64 platform
2790 * Handle existence of OpenSSL Trust Extensions at end of X.509 DER blob
2791 * mpi_add_abs() now correctly handles adding short numbers to long numbers
2792 with carry rollover
2793 * Moved mpi_inv_mod() outside POLARSSL_GENPRIME
2794 * Prevent reading over buffer boundaries on X509 certificate parsing
2795 * mpi_exp_mod() now correctly handles negative base numbers (Closes ticket
2796 #52)
2797 * Fixed possible segfault in mpi_shift_r() (found by Manuel
2798 Pégourié-Gonnard)
2799 * Allow R and A to point to same mpi in mpi_div_mpi (found by Manuel
2800 Pégourié-Gonnard)
2801 * Added max length check for rsa_pkcs1_sign with PKCS#1 v2.1
2802 * Memory leak when using RSA_PKCS_V21 operations fixed
2803 * Handle encryption with private key and decryption with public key as per
2804 RFC 2313
2805 * Fixes for MSVC6
2806
2807Security
2808 * Fixed potential memory zeroization on miscrafted RSA key (found by Eloi
2809 Vanderbeken)
2810
Paul Bakkerd5834bb2012-10-02 14:38:56 +00002811= Version 1.1.4 released on 2012-05-31
2812Bugfix
2813 * Correctly handle empty SSL/TLS packets (Found by James Yonan)
2814 * Fixed potential heap corruption in x509_name allocation
2815 * Fixed single RSA test that failed on Big Endian systems (Closes ticket #54)
2816
Paul Bakkerfad38932012-05-08 09:04:04 +00002817= Version 1.1.3 released on 2012-04-29
2818Bugfix
2819 * Fixed random MPI generation to not generate more size than requested.
2820
2821= Version 1.1.2 released on 2012-04-26
2822Bugfix
2823 * Fixed handling error in mpi_cmp_mpi() on longer B values (found by
2824 Hui Dong)
2825
2826Security
2827 * Fixed potential memory corruption on miscrafted client messages (found by
2828 Frama-C team at CEA LIST)
2829 * Fixed generation of DHM parameters to correct length (found by Ruslan
2830 Yushchenko)
2831
Paul Bakker99955bf2012-01-23 09:31:41 +00002832= Version 1.1.1 released on 2012-01-23
Paul Bakkerb15b8512012-01-13 13:44:06 +00002833Bugfix
2834 * Check for failed malloc() in ssl_set_hostname() and x509_get_entries()
2835 (Closes ticket #47, found by Hugo Leisink)
Paul Bakker2ec0a562012-01-21 05:41:23 +00002836 * Fixed issues with Intel compiler on 64-bit systems (Closes ticket #50)
Paul Bakker99955bf2012-01-23 09:31:41 +00002837 * Fixed multiple compiler warnings for VS6 and armcc
2838 * Fixed bug in CTR_CRBG selftest
Paul Bakkerb15b8512012-01-13 13:44:06 +00002839
Paul Bakker08a50882011-12-22 09:43:57 +00002840= Version 1.1.0 released on 2011-12-22
Paul Bakker7eb013f2011-10-06 12:37:39 +00002841Features
2842 * Added ssl_session_reset() to allow better multi-connection pools of
2843 SSL contexts without needing to set all non-connection-specific
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002844 data and pointers again. Adapted ssl_server to use this functionality.
Paul Bakker490ecc82011-10-06 13:04:09 +00002845 * Added ssl_set_max_version() to allow clients to offer a lower maximum
2846 supported version to a server to help buggy server implementations.
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002847 (Closes ticket #36)
Paul Bakker03a30d32011-11-11 10:55:02 +00002848 * Added cipher_get_cipher_mode() and cipher_get_cipher_operation()
2849 introspection functions (Closes ticket #40)
Paul Bakker0e04d0e2011-11-27 14:46:59 +00002850 * Added CTR_DRBG based on AES-256-CTR (NIST SP 800-90) random generator
Paul Bakker6083fd22011-12-03 21:45:14 +00002851 * Added a generic entropy accumulator that provides support for adding
2852 custom entropy sources and added some generic and platform dependent
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002853 entropy sources
Paul Bakker7eb013f2011-10-06 12:37:39 +00002854
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002855Changes
2856 * Documentation for AES and Camellia in modes CTR and CFB128 clarified.
Paul Bakkerd246ed32011-10-06 13:18:27 +00002857 * Fixed rsa_encrypt and rsa_decrypt examples to use public key for
2858 encryption and private key for decryption. (Closes ticket #34)
Paul Bakkerc4909d92011-10-12 09:52:22 +00002859 * Inceased maximum size of ASN1 length reads to 32-bits.
Paul Bakkerfbc09f32011-10-12 09:56:41 +00002860 * Added an EXPLICIT tag number parameter to x509_get_ext()
Paul Bakkerb5a11ab2011-10-12 09:58:41 +00002861 * Added a separate CRL entry extension parsing function
Paul Bakkerefc30292011-11-10 14:43:23 +00002862 * Separated the ASN.1 parsing code from the X.509 specific parsing code.
2863 So now there is a module that is controlled with POLARSSL_ASN1_PARSE_C.
Paul Bakker5e18aed2011-11-15 15:38:45 +00002864 * Changed the defined key-length of DES ciphers in cipher.h to include the
2865 parity bits, to prevent mistakes in copying data. (Closes ticket #33)
Paul Bakkercce9d772011-11-18 14:26:47 +00002866 * Loads of minimal changes to better support WINCE as a build target
Paul Bakker2e6d5322011-11-18 14:34:17 +00002867 (Credits go to Marco Lizza)
Paul Bakkerb6d5f082011-11-25 11:52:11 +00002868 * Added POLARSSL_MPI_WINDOW_SIZE definition to allow easier time to memory
2869 trade-off
Paul Bakkerfe3256e2011-11-25 12:11:43 +00002870 * Introduced POLARSSL_MPI_MAX_SIZE and POLARSSL_MPI_MAX_BITS for MPI size
2871 management (Closes ticket #44)
Paul Bakkera3d195c2011-11-27 21:07:34 +00002872 * Changed the used random function pointer to more flexible format. Renamed
2873 havege_rand() to havege_random() to prevent mistakes. Lots of changes as
Paul Bakkera35aa542013-03-06 17:06:21 +01002874 a consequence in library code and programs
Paul Bakker508ad5a2011-12-04 17:09:26 +00002875 * Moved all examples programs to use the new entropy and CTR_DRBG
Paul Bakker6c0ceb32011-12-04 12:24:18 +00002876 * Added permissive certificate parsing to x509parse_crt() and
2877 x509parse_crtfile(). With permissive parsing the parsing does not stop on
Paul Bakkera35aa542013-03-06 17:06:21 +01002878 encountering a parse-error. Beware that the meaning of return values has
2879 changed!
Paul Bakker69e095c2011-12-10 21:55:01 +00002880 * All error codes are now negative. Even on mermory failures and IO errors.
Paul Bakkerca6f3e22011-10-06 13:11:08 +00002881
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002882Bugfix
2883 * Fixed faulty HMAC-MD2 implementation. Found by dibac. (Closes
2884 ticket #37)
Paul Bakker3329d1f2011-10-12 09:55:01 +00002885 * Fixed a bug where the CRL parser expected an EXPLICIT ASN.1 tag
2886 before version numbers
Paul Bakkercebdf172011-11-11 15:01:31 +00002887 * Allowed X509 key usage parsing to accept 4 byte values instead of the
2888 standard 1 byte version sometimes used by Microsoft. (Closes ticket #38)
Paul Bakker1fe7d9b2011-11-15 15:26:03 +00002889 * Fixed incorrect behaviour in case of RSASSA-PSS with a salt length
2890 smaller than the hash length. (Closes ticket #41)
Paul Bakker03c7c252011-11-25 12:37:37 +00002891 * If certificate serial is longer than 32 octets, serial number is now
2892 appended with '....' after first 28 octets
Paul Bakker44637402011-11-26 09:23:07 +00002893 * Improved build support for s390x and sparc64 in bignum.h
Paul Bakker4f5ae802011-12-04 22:10:28 +00002894 * Fixed MS Visual C++ name clash with int64 in sha4.h
Paul Bakkerc50132d2011-12-05 14:38:36 +00002895 * Corrected removal of leading "00:" in printing serial numbers in
Paul Bakkerc8ffbe72011-12-05 14:22:49 +00002896 certificates and CRLs
Paul Bakkerfa1c5922011-10-06 14:18:49 +00002897
Paul Bakker968bc982011-07-27 17:03:00 +00002898= Version 1.0.0 released on 2011-07-27
Paul Bakker343a8702011-06-09 14:27:58 +00002899Features
2900 * Expanded cipher layer with support for CFB128 and CTR mode
Paul Bakker7bc05ff2011-08-09 10:30:36 +00002901 * Added rsa_encrypt and rsa_decrypt simple example programs.
Paul Bakker343a8702011-06-09 14:27:58 +00002902
Paul Bakker42e59812011-06-09 15:55:41 +00002903Changes
2904 * The generic cipher and message digest layer now have normal error
2905 codes instead of integers
2906
Paul Bakker887bd502011-06-08 13:10:54 +00002907Bugfix
2908 * Undid faulty bug fix in ssl_write() when flushing old data (Ticket
2909 #18)
2910
Paul Bakker828acb22011-05-27 09:25:42 +00002911= Version 0.99-pre5 released on 2011-05-26
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002912Features
2913 * Added additional Cipher Block Modes to symmetric ciphers
2914 (AES CTR, Camellia CTR, XTEA CBC) including the option to
Paul Bakkera35aa542013-03-06 17:06:21 +01002915 enable and disable individual modes when needed
Paul Bakker335db3f2011-04-25 15:28:35 +00002916 * Functions requiring File System functions can now be disabled
2917 by undefining POLARSSL_FS_IO
Paul Bakker9d781402011-05-09 16:17:09 +00002918 * A error_strerror function() has been added to translate between
2919 error codes and their description.
Paul Bakker2f5947e2011-05-18 15:47:11 +00002920 * Added mpi_get_bit() and mpi_set_bit() individual bit setter/getter
2921 functions.
Paul Bakker1496d382011-05-23 12:07:29 +00002922 * Added ssl_mail_client and ssl_fork_server as example programs.
Paul Bakkerb6ecaf52011-04-19 14:29:23 +00002923
Paul Bakker23986e52011-04-24 08:57:21 +00002924Changes
2925 * Major argument / variable rewrite. Introduced use of size_t
2926 instead of int for buffer lengths and loop variables for
Paul Bakkera35aa542013-03-06 17:06:21 +01002927 better unsigned / signed use. Renamed internal bigint types
2928 t_int and t_dbl to t_uint and t_udbl in the process
Paul Bakker6c591fa2011-05-05 11:49:20 +00002929 * mpi_init() and mpi_free() now only accept a single MPI
2930 argument and do not accept variable argument lists anymore.
Paul Bakker9d781402011-05-09 16:17:09 +00002931 * The error codes have been remapped and combining error codes
2932 is now done with a PLUS instead of an OR as error codes
Paul Bakkera35aa542013-03-06 17:06:21 +01002933 used are negative.
Paul Bakker831a7552011-05-18 13:32:51 +00002934 * Changed behaviour of net_read(), ssl_fetch_input() and ssl_recv().
2935 net_recv() now returns 0 on EOF instead of
Paul Bakkera35aa542013-03-06 17:06:21 +01002936 POLARSSL_ERR_NET_CONN_RESET. ssl_fetch_input() returns
2937 POLARSSL_ERR_SSL_CONN_EOF on an EOF from its f_recv() function.
2938 ssl_read() returns 0 if a POLARSSL_ERR_SSL_CONN_EOF is received
2939 after the handshake.
Paul Bakker831a7552011-05-18 13:32:51 +00002940 * Network functions now return POLARSSL_ERR_NET_WANT_READ or
2941 POLARSSL_ERR_NET_WANT_WRITE instead of the ambiguous
Paul Bakkera35aa542013-03-06 17:06:21 +01002942 POLARSSL_ERR_NET_TRY_AGAIN
Paul Bakker23986e52011-04-24 08:57:21 +00002943
Paul Bakker3efa5752011-04-01 12:23:26 +00002944= Version 0.99-pre4 released on 2011-04-01
Paul Bakker9dcc3222011-03-08 14:16:06 +00002945Features
2946 * Added support for PKCS#1 v2.1 encoding and thus support
2947 for the RSAES-OAEP and RSASSA-PSS operations.
Paul Bakkere77db2e2011-03-25 14:01:32 +00002948 * Reading of Public Key files incorporated into default x509
2949 functionality as well.
Paul Bakker287781a2011-03-26 13:18:49 +00002950 * Added mpi_fill_random() for centralized filling of big numbers
2951 with random data (Fixed ticket #10)
Paul Bakker9dcc3222011-03-08 14:16:06 +00002952
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002953Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002954 * Debug print of MPI now removes leading zero octets and
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002955 displays actual bit size of the value.
Hanno Becker01a0e072017-07-26 11:49:40 +01002956 * x509parse_key() (and as a consequence x509parse_keyfile())
Paul Bakker98675492011-03-26 13:17:12 +00002957 does not zeroize memory in advance anymore. Use rsa_init()
Paul Bakkera35aa542013-03-06 17:06:21 +01002958 before parsing a key or keyfile!
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002959
2960Bugfix
2961 * Debug output of MPI's now the same independent of underlying
2962 platform (32-bit / 64-bit) (Fixes ticket #19, found by Mads
Paul Bakkera35aa542013-03-06 17:06:21 +01002963 Kiilerich and Mihai Militaru)
Paul Bakker1fd00bf2011-03-14 20:50:15 +00002964 * Fixed bug in ssl_write() when flushing old data (Fixed ticket
2965 #18, found by Nikolay Epifanov)
Paul Bakkere77db2e2011-03-25 14:01:32 +00002966 * Fixed proper handling of RSASSA-PSS verification with variable
2967 length salt lengths
Paul Bakkerbe4e7dc2011-03-14 20:41:31 +00002968
Paul Bakker345a6fe2011-02-28 21:20:02 +00002969= Version 0.99-pre3 released on 2011-02-28
2970This release replaces version 0.99-pre2 which had possible copyright issues.
Paul Bakker96743fc2011-02-12 14:30:57 +00002971Features
2972 * Parsing PEM private keys encrypted with DES and AES
2973 are now supported as well (Fixes ticket #5)
Paul Bakkera9507c02011-02-12 15:27:28 +00002974 * Added crl_app program to allow easy reading and
2975 printing of X509 CRLs from file
Paul Bakker96743fc2011-02-12 14:30:57 +00002976
2977Changes
Hanno Becker01a0e072017-07-26 11:49:40 +01002978 * Parsing of PEM files moved to separate module (Fixes
Paul Bakker96743fc2011-02-12 14:30:57 +00002979 ticket #13). Also possible to remove PEM support for
Paul Bakkera35aa542013-03-06 17:06:21 +01002980 systems only using DER encoding
Paul Bakker96743fc2011-02-12 14:30:57 +00002981
Paul Bakker400ff6f2011-02-20 10:40:16 +00002982Bugfixes
2983 * Corrected parsing of UTCTime dates before 1990 and
2984 after 1950
2985 * Support more exotic OID's when parsing certificates
Simon Butcherbb5e1c32018-06-08 11:14:43 +01002986 (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002987 * Support more exotic name representations when parsing
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002988 certificates (found by Mads Kiilerich)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002989 * Replaced the expired test certificates
Paul Bakkere2a39cc2011-02-20 13:49:27 +00002990 * Do not bail out if no client certificate specified. Try
2991 to negotiate anonymous connection (Fixes ticket #12,
Paul Bakkera35aa542013-03-06 17:06:21 +01002992 found by Boris Krasnovskiy)
Paul Bakker400ff6f2011-02-20 10:40:16 +00002993
Paul Bakker345a6fe2011-02-28 21:20:02 +00002994Security fixes
2995 * Fixed a possible Man-in-the-Middle attack on the
2996 Diffie Hellman key exchange (thanks to Larry Highsmith,
Paul Bakkera35aa542013-03-06 17:06:21 +01002997 Subreption LLC)
Paul Bakker345a6fe2011-02-28 21:20:02 +00002998
Paul Bakker9fc46592011-01-30 16:59:02 +00002999= Version 0.99-pre1 released on 2011-01-30
Paul Bakker37ca75d2011-01-06 12:28:03 +00003000Features
Paul Bakkerb63b0af2011-01-13 17:54:59 +00003001Note: Most of these features have been donated by Fox-IT
3002 * Added Doxygen source code documentation parts
Paul Bakker1b57b062011-01-06 15:48:19 +00003003 * Added reading of DHM context from memory and file
Paul Bakker74111d32011-01-15 16:57:55 +00003004 * Improved X509 certificate parsing to include extended
Paul Bakker76fd75a2011-01-16 21:12:10 +00003005 certificate fields, including Key Usage
3006 * Improved certificate verification and verification
3007 against the available CRLs
Paul Bakker1f87fb62011-01-15 17:32:24 +00003008 * Detection for DES weak keys and parity bits added
Paul Bakker72f62662011-01-16 21:27:44 +00003009 * Improvements to support integration in other
3010 applications:
3011 + Added generic message digest and cipher wrapper
3012 + Improved information about current capabilities,
3013 status, objects and configuration
3014 + Added verification callback on certificate chain
3015 verification to allow external blacklisting
Simon Butcherbb5e1c32018-06-08 11:14:43 +01003016 + Additional example programs to show usage
Paul Bakker43b7e352011-01-18 15:27:19 +00003017 * Added support for PKCS#11 through the use of the
3018 libpkcs11-helper library
Paul Bakker37ca75d2011-01-06 12:28:03 +00003019
Paul Bakkerb6194992011-01-16 21:40:22 +00003020Changes
3021 * x509parse_time_expired() checks time in addition to
3022 the existing date check
Paul Bakkere3166ce2011-01-27 17:40:50 +00003023 * The ciphers member of ssl_context and the cipher member
3024 of ssl_session have been renamed to ciphersuites and
Paul Bakkera35aa542013-03-06 17:06:21 +01003025 ciphersuite respectively. This clarifies the difference
3026 with the generic cipher layer and is better naming
3027 altogether
Paul Bakkerb6194992011-01-16 21:40:22 +00003028
Paul Bakker99ed6782011-01-05 14:48:42 +00003029= Version 0.14.0 released on 2010-08-16
3030Features
3031 * Added support for SSL_EDH_RSA_AES_128_SHA and
3032 SSL_EDH_RSA_CAMELLIA_128_SHA ciphersuites
3033 * Added compile-time and run-time version information
3034 * Expanded ssl_client2 arguments for more flexibility
3035 * Added support for TLS v1.1
3036
3037Changes
3038 * Made Makefile cleaner
3039 * Removed dependency on rand() in rsa_pkcs1_encrypt().
3040 Now using random fuction provided to function and
Paul Bakkera35aa542013-03-06 17:06:21 +01003041 changed the prototype of rsa_pkcs1_encrypt(),
3042 rsa_init() and rsa_gen_key().
Paul Bakker99ed6782011-01-05 14:48:42 +00003043 * Some SSL defines were renamed in order to avoid
3044 future confusion
3045
3046Bug fixes
3047 * Fixed CMake out of source build for tests (found by
3048 kkert)
3049 * rsa_check_private() now supports PKCS1v2 keys as well
3050 * Fixed deadlock in rsa_pkcs1_encrypt() on failing random
3051 generator
3052
3053= Version 0.13.1 released on 2010-03-24
3054Bug fixes
3055 * Fixed Makefile in library that was mistakenly merged
3056 * Added missing const string fixes
3057
3058= Version 0.13.0 released on 2010-03-21
3059Features
3060 * Added option parsing for host and port selection to
3061 ssl_client2
3062 * Added support for GeneralizedTime in X509 parsing
3063 * Added cert_app program to allow easy reading and
3064 printing of X509 certificates from file or SSL
3065 connection.
3066
3067Changes
3068 * Added const correctness for main code base
3069 * X509 signature algorithm determination is now
3070 in a function to allow easy future expansion
3071 * Changed symmetric cipher functions to
3072 identical interface (returning int result values)
Paul Bakker60b1d102013-10-29 10:02:51 +01003073 * Changed ARC4 to use separate input/output buffer
Paul Bakker99ed6782011-01-05 14:48:42 +00003074 * Added reset function for HMAC context as speed-up
3075 for specific use-cases
3076
3077Bug fixes
3078 * Fixed bug resulting in failure to send the last
3079 certificate in the chain in ssl_write_certificate() and
3080 ssl_write_certificate_request() (found by fatbob)
3081 * Added small fixes for compiler warnings on a Mac
3082 (found by Frank de Brabander)
3083 * Fixed algorithmic bug in mpi_is_prime() (found by
3084 Smbat Tonoyan)
3085
3086= Version 0.12.1 released on 2009-10-04
3087Changes
3088 * Coverage test definitions now support 'depends_on'
3089 tagging system.
3090 * Tests requiring specific hashing algorithms now honor
3091 the defines.
3092
3093Bug fixes
3094 * Changed typo in #ifdef in x509parse.c (found
3095 by Eduardo)
3096
3097= Version 0.12.0 released on 2009-07-28
3098Features
3099 * Added CMake makefiles as alternative to regular Makefiles.
3100 * Added preliminary Code Coverage tests for AES, ARC4,
3101 Base64, MPI, SHA-family, MD-family, HMAC-SHA-family,
3102 Camellia, DES, 3-DES, RSA PKCS#1, XTEA, Diffie-Hellman
3103 and X509parse.
3104
3105Changes
3106 * Error codes are not (necessarily) negative. Keep
3107 this is mind when checking for errors.
3108 * RSA_RAW renamed to SIG_RSA_RAW for consistency.
3109 * Fixed typo in name of POLARSSL_ERR_RSA_OUTPUT_TOO_LARGE.
3110 * Changed interface for AES and Camellia setkey functions
3111 to indicate invalid key lengths.
3112
3113Bug fixes
3114 * Fixed include location of endian.h on FreeBSD (found by
3115 Gabriel)
3116 * Fixed include location of endian.h and name clash on
3117 Apples (found by Martin van Hensbergen)
3118 * Fixed HMAC-MD2 by modifying md2_starts(), so that the
3119 required HMAC ipad and opad variables are not cleared.
3120 (found by code coverage tests)
Hanno Becker01a0e072017-07-26 11:49:40 +01003121 * Prevented use of long long in bignum if
Paul Bakker99ed6782011-01-05 14:48:42 +00003122 POLARSSL_HAVE_LONGLONG not defined (found by Giles
3123 Bathgate).
3124 * Fixed incorrect handling of negative strings in
3125 mpi_read_string() (found by code coverage tests).
3126 * Fixed segfault on handling empty rsa_context in
3127 rsa_check_pubkey() and rsa_check_privkey() (found by
3128 code coverage tests).
3129 * Fixed incorrect handling of one single negative input
3130 value in mpi_add_abs() (found by code coverage tests).
3131 * Fixed incorrect handling of negative first input
3132 value in mpi_sub_abs() (found by code coverage tests).
3133 * Fixed incorrect handling of negative first input
3134 value in mpi_mod_mpi() and mpi_mod_int(). Resulting
3135 change also affects mpi_write_string() (found by code
3136 coverage tests).
3137 * Corrected is_prime() results for 0, 1 and 2 (found by
3138 code coverage tests).
3139 * Fixed Camellia and XTEA for 64-bit Windows systems.
3140
3141= Version 0.11.1 released on 2009-05-17
3142 * Fixed missing functionality for SHA-224, SHA-256, SHA384,
3143 SHA-512 in rsa_pkcs1_sign()
3144
3145= Version 0.11.0 released on 2009-05-03
3146 * Fixed a bug in mpi_gcd() so that it also works when both
3147 input numbers are even and added testcases to check
3148 (found by Pierre Habouzit).
3149 * Added support for SHA-224, SHA-256, SHA-384 and SHA-512
3150 one way hash functions with the PKCS#1 v1.5 signing and
3151 verification.
3152 * Fixed minor bug regarding mpi_gcd located within the
3153 POLARSSL_GENPRIME block.
3154 * Fixed minor memory leak in x509parse_crt() and added better
3155 handling of 'full' certificate chains (found by Mathias
3156 Olsson).
3157 * Centralized file opening and reading for x509 files into
3158 load_file()
3159 * Made definition of net_htons() endian-clean for big endian
3160 systems (Found by Gernot).
3161 * Undefining POLARSSL_HAVE_ASM now also handles prevents asm in
Hanno Becker01a0e072017-07-26 11:49:40 +01003162 padlock and timing code.
Paul Bakker99ed6782011-01-05 14:48:42 +00003163 * Fixed an off-by-one buffer allocation in ssl_set_hostname()
3164 responsible for crashes and unwanted behaviour.
3165 * Added support for Certificate Revocation List (CRL) parsing.
3166 * Added support for CRL revocation to x509parse_verify() and
3167 SSL/TLS code.
3168 * Fixed compatibility of XTEA and Camellia on a 64-bit system
3169 (found by Felix von Leitner).
3170
3171= Version 0.10.0 released on 2009-01-12
3172 * Migrated XySSL to PolarSSL
3173 * Added XTEA symmetric cipher
3174 * Added Camellia symmetric cipher
3175 * Added support for ciphersuites: SSL_RSA_CAMELLIA_128_SHA,
3176 SSL_RSA_CAMELLIA_256_SHA and SSL_EDH_RSA_CAMELLIA_256_SHA
3177 * Fixed dangerous bug that can cause a heap overflow in
3178 rsa_pkcs1_decrypt (found by Christophe Devine)
3179
3180================================================================
3181XySSL ChangeLog
3182
3183= Version 0.9 released on 2008-03-16
3184
3185 * Added support for ciphersuite: SSL_RSA_AES_128_SHA
3186 * Enabled support for large files by default in aescrypt2.c
3187 * Preliminary openssl wrapper contributed by David Barrett
3188 * Fixed a bug in ssl_write() that caused the same payload to
3189 be sent twice in non-blocking mode when send returns EAGAIN
3190 * Fixed ssl_parse_client_hello(): session id and challenge must
3191 not be swapped in the SSLv2 ClientHello (found by Greg Robson)
3192 * Added user-defined callback debug function (Krystian Kolodziej)
3193 * Before freeing a certificate, properly zero out all cert. data
3194 * Fixed the "mode" parameter so that encryption/decryption are
3195 not swapped on PadLock; also fixed compilation on older versions
3196 of gcc (bug reported by David Barrett)
3197 * Correctly handle the case in padlock_xcryptcbc() when input or
Antonin Décimo8fd91562019-01-23 15:24:37 +01003198 output data is non-aligned by falling back to the software
Paul Bakker99ed6782011-01-05 14:48:42 +00003199 implementation, as VIA Nehemiah cannot handle non-aligned buffers
3200 * Fixed a memory leak in x509parse_crt() which was reported by Greg
3201 Robson-Garth; some x509write.c fixes by Pascal Vizeli, thanks to
3202 Matthew Page who reported several bugs
3203 * Fixed x509_get_ext() to accept some rare certificates which have
3204 an INTEGER instead of a BOOLEAN for BasicConstraints::cA.
3205 * Added support on the client side for the TLS "hostname" extension
3206 (patch contributed by David Patino)
3207 * Make x509parse_verify() return BADCERT_CN_MISMATCH when an empty
3208 string is passed as the CN (bug reported by spoofy)
3209 * Added an option to enable/disable the BN assembly code
3210 * Updated rsa_check_privkey() to verify that (D*E) = 1 % (P-1)*(Q-1)
3211 * Disabled obsolete hash functions by default (MD2, MD4); updated
3212 selftest and benchmark to not test ciphers that have been disabled
3213 * Updated x509parse_cert_info() to correctly display byte 0 of the
3214 serial number, setup correct server port in the ssl client example
3215 * Fixed a critical denial-of-service with X.509 cert. verification:
3216 peer may cause xyssl to loop indefinitely by sending a certificate
3217 for which the RSA signature check fails (bug reported by Benoit)
3218 * Added test vectors for: AES-CBC, AES-CFB, DES-CBC and 3DES-CBC,
3219 HMAC-MD5, HMAC-SHA1, HMAC-SHA-256, HMAC-SHA-384, and HMAC-SHA-512
3220 * Fixed HMAC-SHA-384 and HMAC-SHA-512 (thanks to Josh Sinykin)
3221 * Modified ssl_parse_client_key_exchange() to protect against
3222 Daniel Bleichenbacher attack on PKCS#1 v1.5 padding, as well
3223 as the Klima-Pokorny-Rosa extension of Bleichenbacher's attack
3224 * Updated rsa_gen_key() so that ctx->N is always nbits in size
3225 * Fixed assembly PPC compilation errors on Mac OS X, thanks to
3226 David Barrett and Dusan Semen
3227
3228= Version 0.8 released on 2007-10-20
3229
3230 * Modified the HMAC functions to handle keys larger
3231 than 64 bytes, thanks to Stephane Desneux and gary ng
3232 * Fixed ssl_read_record() to properly update the handshake
3233 message digests, which fixes IE6/IE7 client authentication
3234 * Cleaned up the XYSSL* #defines, suggested by Azriel Fasten
3235 * Fixed net_recv(), thanks to Lorenz Schori and Egon Kocjan
3236 * Added user-defined callbacks for handling I/O and sessions
3237 * Added lots of debugging output in the SSL/TLS functions
3238 * Added preliminary X.509 cert. writing by Pascal Vizeli
3239 * Added preliminary support for the VIA PadLock routines
3240 * Added AES-CFB mode of operation, contributed by chmike
3241 * Added an SSL/TLS stress testing program (ssl_test.c)
3242 * Updated the RSA PKCS#1 code to allow choosing between
3243 RSA_PUBLIC and RSA_PRIVATE, as suggested by David Barrett
3244 * Updated ssl_read() to skip 0-length records from OpenSSL
3245 * Fixed the make install target to comply with *BSD make
3246 * Fixed a bug in mpi_read_binary() on 64-bit platforms
3247 * mpi_is_prime() speedups, thanks to Kevin McLaughlin
3248 * Fixed a long standing memory leak in mpi_is_prime()
3249 * Replaced realloc with malloc in mpi_grow(), and set
3250 the sign of zero as positive in mpi_init() (reported
3251 by Jonathan M. McCune)
3252
3253= Version 0.7 released on 2007-07-07
3254
3255 * Added support for the MicroBlaze soft-core processor
3256 * Fixed a bug in ssl_tls.c which sometimes prevented SSL
3257 connections from being established with non-blocking I/O
3258 * Fixed a couple bugs in the VS6 and UNIX Makefiles
3259 * Fixed the "PIC register ebx clobbered in asm" bug
3260 * Added HMAC starts/update/finish support functions
3261 * Added the SHA-224, SHA-384 and SHA-512 hash functions
3262 * Fixed the net_set_*block routines, thanks to Andreas
3263 * Added a few demonstration programs: md5sum, sha1sum,
3264 dh_client, dh_server, rsa_genkey, rsa_sign, rsa_verify
3265 * Added new bignum import and export helper functions
3266 * Rewrote README.txt in program/ssl/ca to better explain
3267 how to create a test PKI
3268
3269= Version 0.6 released on 2007-04-01
3270
3271 * Ciphers used in SSL/TLS can now be disabled at compile
3272 time, to reduce the memory footprint on embedded systems
3273 * Added multiply assembly code for the TriCore and modified
3274 havege_struct for this processor, thanks to David Patiño
3275 * Added multiply assembly code for 64-bit PowerPCs,
3276 thanks to Peking University and the OSU Open Source Lab
3277 * Added experimental support of Quantum Cryptography
3278 * Added support for autoconf, contributed by Arnaud Cornet
3279 * Fixed "long long" compilation issues on IA-64 and PPC64
3280 * Fixed a bug introduced in xyssl-0.5/timing.c: hardclock
3281 was not being correctly defined on ARM and MIPS
3282
3283= Version 0.5 released on 2007-03-01
3284
3285 * Added multiply assembly code for SPARC and Alpha
3286 * Added (beta) support for non-blocking I/O operations
3287 * Implemented session resuming and client authentication
3288 * Fixed some portability issues on WinCE, MINIX 3, Plan9
3289 (thanks to Benjamin Newman), HP-UX, FreeBSD and Solaris
3290 * Improved the performance of the EDH key exchange
3291 * Fixed a bug that caused valid packets with a payload
3292 size of 16384 bytes to be rejected
3293
3294= Version 0.4 released on 2007-02-01
3295
3296 * Added support for Ephemeral Diffie-Hellman key exchange
3297 * Added multiply asm code for SSE2, ARM, PPC, MIPS and M68K
3298 * Various improvement to the modular exponentiation code
3299 * Rewrote the headers to generate the API docs with doxygen
3300 * Fixed a bug in ssl_encrypt_buf (incorrect padding was
3301 generated) and in ssl_parse_client_hello (max. client
3302 version was not properly set), thanks to Didier Rebeix
3303 * Fixed another bug in ssl_parse_client_hello: clients with
3304 cipherlists larger than 96 bytes were incorrectly rejected
3305 * Fixed a couple memory leak in x509_read.c
3306
3307= Version 0.3 released on 2007-01-01
3308
3309 * Added server-side SSLv3 and TLSv1.0 support
3310 * Multiple fixes to enhance the compatibility with g++,
3311 thanks to Xosé Antón Otero Ferreira
3312 * Fixed a bug in the CBC code, thanks to dowst; also,
Paul Bakker60b1d102013-10-29 10:02:51 +01003313 the bignum code is no longer dependent on long long
Paul Bakker99ed6782011-01-05 14:48:42 +00003314 * Updated rsa_pkcs1_sign to handle arbitrary large inputs
3315 * Updated timing.c for improved compatibility with i386
3316 and 486 processors, thanks to Arnaud Cornet
3317
3318= Version 0.2 released on 2006-12-01
3319
3320 * Updated timing.c to support ARM and MIPS arch
3321 * Updated the MPI code to support 8086 on MSVC 1.5
3322 * Added the copyright notice at the top of havege.h
3323 * Fixed a bug in sha2_hmac, thanks to newsoft/Wenfang Zhang
3324 * Fixed a bug reported by Adrian Rüegsegger in x509_read_key
3325 * Fixed a bug reported by Torsten Lauter in ssl_read_record
3326 * Fixed a bug in rsa_check_privkey that would wrongly cause
3327 valid RSA keys to be dismissed (thanks to oldwolf)
3328 * Fixed a bug in mpi_is_prime that caused some primes to fail
3329 the Miller-Rabin primality test
3330
3331 I'd also like to thank Younès Hafri for the CRUX linux port,
3332 Khalil Petit who added XySSL into pkgsrc and Arnaud Cornet
3333 who maintains the Debian package :-)
3334
3335= Version 0.1 released on 2006-11-01