Secunia Security Advisory – Red Hat has issued an update for ruby. 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/72686/sa33013.txt
Source: https://packetstormsecurity.com/files/72686/Secunia-Security-Advisory-33013.html