Secunia Security Advisory – A vulnerability has been reported in X11, which potentially can be exploited by malicious, local users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40015/sa16790.txt
Source: https://packetstormsecurity.com/files/40015/Secunia-Security-Advisory-16790.html