Secunia Security Advisory – Fedora has issued an update for optipng. This fixes a vulnerability, which can be exploited by malicious people to potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75291/sa34072.txt
Source: https://packetstormsecurity.com/files/75291/Secunia-Security-Advisory-34072.html