Secunia Security Advisory – A security issue has been reported in X.Org X11, which can be exploited by malicious, local users to gain access to system information.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/50978/sa22439.txt
Source: https://packetstormsecurity.com/files/50978/Secunia-Security-Advisory-22439.html