Secunia Security Advisory – Slackware 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/80103/sa36175.txt
Source: https://packetstormsecurity.com/files/80103/Secunia-Security-Advisory-36175.html