Secunia Security Advisory – Some vulnerabilities have been reported in Tor, where one has an unknown impact and others 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/74843/sa33880.txt
Source: https://packetstormsecurity.com/files/74843/Secunia-Security-Advisory-33880.html

