Secunia Security Advisory – Debian has issued an update for cupsys. This fixes a security issue and a vulnerability, which can be exploited by malicious, local users to perform certain actions with escalated privileges, and by malicious people to cause a DoS (Denial of Service) or to potentially compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/62101/sa28200.txt
Source: https://packetstormsecurity.com/files/62101/Secunia-Security-Advisory-28200.html