Secunia Security Advisory – Ubuntu has issued an update for mozilla-thunderbird. This fixes some vulnerabilities, which can be exploited by malicious people to conduct spoofing attacks, manipulate certain data, bypass certain security restrictions, and compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40645/sa17149.txt
Source: https://packetstormsecurity.com/files/40645/Secunia-Security-Advisory-17149.html