Secunia Security Advisory – Debian has issued an update for gtkhtml. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service) on certain applications using it (eg. Evolution).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/37351/sa15001.txt
Source: https://packetstormsecurity.com/files/37351/Secunia-Security-Advisory-15001.html