Add ChangeLog entry for previous security fix
Fixes
mbed TLS ChangeLog (Sorted per branch, date)
-= mbed TLS 2.7.x branch released 2018-xx-xx
-
-Default behavior changes
- * The truncated HMAC extension now conforms to RFC 6066. This means
- that when both sides of a TLS connection negotiate the truncated
- HMAC extension, Mbed TLS can now interoperate with other
- compliant implementations, but this breaks interoperability with
- prior versions of Mbed TLS. To restore the old behavior, enable
- the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
- config.h. Found by Andreas Walz (ivESK, Offenburg University of
- Applied Sciences).
+= mbed TLS x.x.x branch released xxxx-xx-xx
Security
* Fix implementation of the truncated HMAC extension. The previous
implementation allowed an offline 2^80 brute force attack on the
HMAC key of a single, uninterrupted connection (with no
resumption of the session).
+ * Fix a bug in the X.509 module potentially leading to a buffer overread
+ during CRT verification or to invalid or omitted checks for certificate
+ validity. The former can be triggered remotely, while the latter requires
+ a non DER-compliant certificate correctly signed by a trusted CA, or a
+ trusted CA with a non DER-compliant certificate. Found by luocm on GitHub.
+ Fixes #825.
Features
* Extend PKCS#8 interface by introducing support for the entire SHA
@@ -44,6 +40,16 @@ Changes
* MD functions deprecated in 2.7.0 are no longer inline, to provide
a migration path for those depending on the library's ABI.
+Default behavior changes
+ * The truncated HMAC extension now conforms to RFC 6066. This means
+ that when both sides of a TLS connection negotiate the truncated
+ HMAC extension, Mbed TLS can now interoperate with other
+ compliant implementations, but this breaks interoperability with
+ prior versions of Mbed TLS. To restore the old behavior, enable
+ the (deprecated) option MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT in
+ config.h. Found by Andreas Walz (ivESK, Offenburg University of
+ Applied Sciences).
+
= mbed TLS 2.7.0 branch released 2018-02-03
Security
