Secunia Security Advisory – Gentoo has issued an update for pam_krb5. This fixes some vulnerabilities, 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/76105/sa34449.txt
Source: https://packetstormsecurity.com/files/76105/Secunia-Security-Advisory-34449.html