Ubuntu Update for mozilla-thunderbird, thunderbird vulnerabilities USN-605-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-605-1
Solution
Please Install the Updated Packages.
Insight
Various flaws were discovered in the JavaScript engine. If a user had JavaScript enabled and were tricked into opening a malicious email, an attacker could escalate privileges within Thunderbird, perform cross-site scripting attacks and/or execute arbitrary code with the user's privileges. (CVE-2008-1233, CVE-2008-1234, CVE-2008-1235) Several problems were discovered in Thunderbird which could lead to crashes and memory corruption. If a user had JavaScript enabled and were tricked into opening a malicious email, an attacker may be able to execute arbitrary code with the user's privileges. (CVE-2008-1236, CVE-2008-1237)
Affected
mozilla-thunderbird, thunderbird vulnerabilities on Ubuntu 6.06 LTS , Ubuntu 7.04 , Ubuntu 7.10 , Ubuntu 8.04 LTS