Secunia Security Advisory – Some vulnerabilities have been reported in pam-krb5, which can be exploited by malicious, local users to overwrite files and to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/74927/sa33914.txt
Source: https://packetstormsecurity.com/files/74927/Secunia-Security-Advisory-33914.html