Secunia Security Advisory – Debian has issued an update for fetchmail. This fixes a vulnerability, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/80262/sa36236.txt
Source: https://packetstormsecurity.com/files/80262/Secunia-Security-Advisory-36236.html