Ubuntu Security Notice 978-2

Ubuntu Security Notice 978-2 – USN-978-1 fixed vulnerabilities in Thunderbird. Some users reported stability problems under certain circumstances. This update fixes the problem. Several dangling pointer vulnerabilities were discovered in Thunderbird. It was discovered that the XPCSafeJSObjectWrapper (SJOW) security wrapper did not always honor the same-origin policy. Matt Haggard discovered that Thunderbird did not honor same-origin policy when processing the statusText property of an XMLHttpRequest object. Chris Rohlf discovered an integer overflow when Thunderbird processed the HTML frameset element. Several issues were discovered in the browser engine. David Huang and Collin Jackson discovered that the