Secunia Security Advisory – Red Hat has issued an update for pam_krb5. This fixes a security issue, which can be exploited by malicious, local users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70622/sa32135.txt
Source: https://packetstormsecurity.com/files/70622/Secunia-Security-Advisory-32135.html