Secunia Security Advisory – Debian has issued an update for libgd2. This fixes a vulnerability, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) against applications and services using libgd2.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48516/sa21186.txt
Source: https://packetstormsecurity.com/files/48516/Secunia-Security-Advisory-21186.html