Secunia Security Advisory – Red Hat has issued an update for squid. This fixes a security issue and two vulnerabilities, which can be exploited by malicious people to disclose sensitive information, spoof DNS lookups and cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/38003/sa15707.txt
Source: https://packetstormsecurity.com/files/38003/Secunia-Security-Advisory-15707.html

