Ubuntu Update for thunderbird vulnerabilities USN-1050-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1050-1
Solution
Please Install the Updated Packages.
Insight
Jesse Ruderman, Igor Bukanov, Olli Pettay, Gary Kwong, Jeff Walden, Henry Sivonen, Martijn Wargers, David Baron and Marcia Knous discovered several memory issues in the browser engine. An attacker could exploit these to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2011-0053, CVE-2011-0062) Roberto Suggi Liverani discovered a possible issue with unsafe JavaScript execution in chrome documents. A malicious extension could exploit this to execute arbitrary code with chrome privlieges. (CVE-2010-1585) Jordi Chancel discovered a buffer overlow in the JPEG decoding engine. An attacker could exploit this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2011-0061)
Affected
thunderbird vulnerabilities on Ubuntu 10.04 LTS , Ubuntu 10.10