Secunia Security Advisory – Ubuntu has issued an update for gzip. This fixes multiple vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/85483/sa38232.txt
Source: https://packetstormsecurity.com/files/85483/Secunia-Security-Advisory-38232.html

