Ubuntu Security Notice 915-1 – Several flaws were discovered in the JavaScript engine of Thunderbird. Josh Soref discovered that the BinHex decoder used in Thunderbird contained a flaw. It was discovered that Thunderbird did not properly manage memory when using XUL tree elements. Jesse Ruderman and Sid Stamm discovered that Thunderbird did not properly display filenames containing right-to-left (RTL) override characters. Takehiro Takahashi discovered flaws in the NTLM implementation in Thunderbird. Ludovic Hirlimann discovered a flaw in the way Thunderbird indexed certain messages with attachments.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/87448/USN-915-1.txt
Source: https://packetstormsecurity.com/files/87448/Ubuntu-Security-Notice-915-1.html