Secunia Security Advisory – Debian has issues an update for device-mapper-multipath. This fixes a security issue, which can be exploited by malicious, local users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76567/sa34694.txt
Source: https://packetstormsecurity.com/files/76567/Secunia-Security-Advisory-34694.html