Several security issues were fixed in Thunderbird.
USN-1620-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Thunderbird. Please note that Thunderbird is only affected by window.location issues through RSS feeds and extensions that load web content.
30 October 2012
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Thunderbird.
USN-1620-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Thunderbird. Please note that Thunderbird is only affected by window.location issues through RSS feeds and extensions that load web content.
Original advisory details:
Mariusz Mlynski and others discovered several flaws in Firefox that allowed a remote attacker to conduct cross-site scripting (XSS) attacks. (CVE-2012-4194, CVE-2012-4195)
Antoine Delignat-Lavaud discovered a flaw in the way Firefox handled the Location object. If a user were tricked into opening a specially crafted page, a remote attacker could exploit this to bypass security protections and perform cross-origin reading of the Location object. (CVE-2012-4196)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Thunderbird to make all the necessary changes.
Vulmon