Secunia Security Advisory – Ubuntu has issued an update for thunderbird. This fixes some vulnerabilities, which can be exploited by malicious people to disclose sensitive information, bypass certain security restrictions, or potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/64243/sa29098.txt
Source: https://packetstormsecurity.com/files/64243/Secunia-Security-Advisory-29098.html