Secunia Security Advisory – Ubuntu has issued an update for cups and cupsys. 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/78106/sa35328.txt
Source: https://packetstormsecurity.com/files/78106/Secunia-Security-Advisory-35328.html