Secunia Security Advisory – Ubuntu has issued an update for thunderbird. This fixes some vulnerabilities, which can be exploited by malicious people to bypass certain security restrictions, conduct cross-site scripting attacks, or potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/66081/sa30105.txt
Source: https://packetstormsecurity.com/files/66081/Secunia-Security-Advisory-30105.html