Secunia Security Advisory – Some vulnerabilities have been reported in Kolab Server, which can potentially 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/58767/sa26552.txt
Source: https://packetstormsecurity.com/files/58767/Secunia-Security-Advisory-26552.html