Secunia Security Advisory – rPath has issued an update for sendmail. This fixes a vulnerability, 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/48495/sa21160.txt
Source: https://packetstormsecurity.com/files/48495/Secunia-Security-Advisory-21160.html