Secunia Security Advisory – Debian has issued an update for kdm. This fixes a security issue, which 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/88682/sa39506.txt
Source: https://packetstormsecurity.com/files/88682/Secunia-Security-Advisory-39506.html