Secunia Security Advisory – A weakness has been reported in gnome-screensaver, which can be exploited by malicious people with physical access to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/86365/sa38565.txt
Source: https://packetstormsecurity.com/files/86365/Secunia-Security-Advisory-38565.html