SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionYosuke Hasegawa discovered that the Mozilla browser engine mishandled invalid sequences in the Shift-JIS encoding. It may be possible to trigger this crash without the use of debugging APIs, which might allow malicious websites to exploit this vulnerability. An attacker could possibly use this flaw this to steal data or inject malicious scripts into web content. (CVE-2011-3648)
Jason Orendorff, Boris Zbarsky, Gregg Tavares, Mats Palmgren, Christian Holler, Jesse Ruderman, Simona Marcu, Bob Clary, and William McCloskey discovered multiple memory safety bugs in the browser engine used in Thunderbird and other Mozilla-based products. An attacker might be able to use these flaws to execute arbitrary code with the privileges of the user invoking Thunderbird or possibly crash Thunderbird resulting in a denial of service. (CVE-2011-3651)
It was discovered that Thunderbird could be caused to crash under certain conditions, due to an unchecked allocation failure, resulting in a denial of service. It might also be possible to execute arbitrary code with the privileges of the user invoking Thunderbird.
Aki Helin discovered that Thunderbird does not properly handle links from SVG mpath elements to non-SVG elements. An attacker could use this vulnerability to crash Thunderbird, resulting in a denial of service, or possibly execute arbitrary code with the privileges of the user invoking Thunderbird. (CVE-2011-3654)
It was discovered that an internal privilege check failed to respect the NoWaiverWrappers introduced with Thunderbird 5. An attacker could possibly use this to gain elevated privileges within Thunderbird for web content. (CVE-2011-3655).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected thunderbird package.