Fix potential overflow in base64_encode
diff --git a/ChangeLog b/ChangeLog
index c9e48e2..187c1ee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,6 +3,13 @@
= mbed TLS 2.1.1 released 2015-09-17
Security
+ * Fix possible heap buffer overflow in base64_encoded() when the input
+ buffer is 512MB or larger on 32-bit platforms.
+ Found by Guido Vranken. Not trigerrable remotely in TLS.
+
+= mbed TLS 2.1.1 released 2015-09-17
+
+Security
* Add countermeasure against Lenstra's RSA-CRT attack for PKCS#1 v1.5
signatures. (Found by Florian Weimer, Red Hat.)
https://securityblog.redhat.com/2015/09/02/factoring-rsa-keys-with-tls-perfect-forward-secrecy/