Secunia Security Advisory – Ubuntu has issued an update for tar. This fixes a vulnerability, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) and to compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44101/sa18999.txt
Source: https://packetstormsecurity.com/files/44101/Secunia-Security-Advisory-18999.html