Mozilla Firefox / Thunderbird Multiple Vulnerabilities

Multiple vulnerabilities have been identified in Mozilla Firefox and Thunderbird, which can be exploited by malicious people to bypass certain security restrictions and compromise a vulnerable system.

1. Some unspecified errors can be exploited to corrupt memory.
2. A use-after-free error in the "nsSVGPathSegList::ReplaceItem()" method when processing SVG element lists can be exploited to access an invalid element list when a user supplied callback deletes an object.
3. A use-after-free error in the "nsSVGPointList::AppendElement()" method when processing SVG element lists can be exploited to access an invalid element list when a user supplied callback deletes an object.
4. A use-after-free error in "nsXULCommandDispatcher" when processing XUL documents can be exploited to remove the currently used command updater.
5. An error when handling cookies for two domains where one contains a trailing dot character can be exploited to bypass the same-origin policy and disclose a cookie to a third party.