Secunia Security Advisory – Ubuntu has issued an update for gtk+2.0. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/54142/sa24010.txt
Source: https://packetstormsecurity.com/files/54142/Secunia-Security-Advisory-24010.html