Ubuntu Security Notice USN-781-2 – It was discovered that Gaim did not properly handle certain malformed messages when sending a file using the XMPP protocol handler. If a user were tricked into sending a file, a remote attacker could send a specially crafted response and cause Gaim to crash, or possibly execute arbitrary code with user privileges. It was discovered that Gaim did not properly handle certain malformed messages in the MSN protocol handler. A remote attacker could send a specially crafted message and possibly execute arbitrary code with user privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78085/USN-781-2.txt
Source: https://packetstormsecurity.com/files/78085/Ubuntu-Security-Notice-781-2.html