Fix potential integer overflow parsing DER CRL
This patch prevents a potential signed integer overflow during the
CRL version verification checks.
diff --git a/ChangeLog b/ChangeLog
index d3d1e0b..58ee285 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -13,6 +13,10 @@
Found by redplait #590
* Add MBEDTLS_MPI_CHK to check for error value of mbedtls_mpi_fill_random.
Reported and fix suggested by guidovranken in #740
+ * Fix a potential integer overflow in the version verification for DER
+ encoded X509 CRLs. The overflow would enable maliciously constructed CRLs
+ to bypass the version verification check. Found by Peng Li/Yueh-Hsun Lin,
+ KNOX Security, Samsung Research America
Features
* Add the functions mbedtls_platform_setup() and mbedtls_platform_teardown()