Debian Linux Security Advisory 2063-1 – Dan Rosenberg discovered that pmount, a wrapper around the standard mount program which permits normal users to mount removable devices without a matching /etc/fstab entry, creates files in /var/lock insecurely. A local attacker could overwrite arbitrary files utilising a symlink attack.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/90766/dsa-2063-1.txt
Source: https://packetstormsecurity.com/files/90766/Debian-Linux-Security-Advisory-2063-1.html