Secunia Security Advisory – Red Hat has issued an update for ruby. This fixes some vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68215/sa31062.txt
Source: https://packetstormsecurity.com/files/68215/Secunia-Security-Advisory-31062.html