Secunia Security Advisory – Some vulnerabilities have been reported in Ruby, which can be exploited by malicious people to bypass certain security restrictions, cause a DoS (Denial of Service), and conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68942/sa31430.txt
Source: https://packetstormsecurity.com/files/68942/Secunia-Security-Advisory-31430.html