Secunia Security Advisory – Debian has issued an update for libpam-heimdal. This fixes a vulnerability, which can be exploited by malicious, local users to overwrite files and potentially to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/74926/sa33918.txt
Source: https://packetstormsecurity.com/files/74926/Secunia-Security-Advisory-33918.html