USN-2821-1: GnuTLS vulnerability
Ubuntu Security Notice USN-2821-1
30th November, 2015
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
GnuTLS could be made to expose sensitive information over the network.
- gnutls26 - GNU TLS library
It was discovered that GnuTLS incorrectly validated the first byte of
padding in CBC modes. A remote attacker could possibly use this issue to
perform a padding oracle attack.
The problem can be corrected by updating your system to the following package version:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.