Secunia Security Advisory – Fedora has issued an update for postfix. This fixes some security issues, which can be exploited by malicious, local users to disclose potentially sensitive information, cause a DoS (Denial of Service), and perform certain actions with escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70798/sa32231.txt
Source: https://packetstormsecurity.com/files/70798/Secunia-Security-Advisory-32231.html

