Secunia Security Advisory – Debian has issued an update for asterisk. This fixes a vulnerability, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48609/sa21222.txt
Source: https://packetstormsecurity.com/files/48609/Secunia-Security-Advisory-21222.html