Secunia Security Advisory – Trustix has issued an update for mailman. This fixes two vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44554/sa19196.txt
Source: https://packetstormsecurity.com/files/44554/Secunia-Security-Advisory-19196.html