Ubuntu Security Notice USN-796-1 – Yuriy Kaminskiy discovered that Pidgin did not properly handle certain messages in the ICQ protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78941/USN-796-1.txt
Source: https://packetstormsecurity.com/files/78941/Ubuntu-Security-Notice-796-1.html