Secunia Security Advisory – Some vulnerabilities has been reported in Cisco CallManager, 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/43184/sa18494.txt
Source: https://packetstormsecurity.com/files/43184/Secunia-Security-Advisory-18494.html