Mozilla Thunderbird is a standalone mail and newsgroup client. Several flaws were found in the processing of malformed content. Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. Content containing a malicious Scalable Vector Graphics image file could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. Two flaws were found in the way Thunderbird rendered certain images using WebGL. Malicious content could cause Thunderbird to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Thunderbird. A flaw was found in the way Thunderbird decoded embedded bitmap images in Icon Format files. Content containing a malicious ICO file could cause Thunderbird to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Thunderbird. A flaw was found in the way the "eval" command was handled by the Thunderbird Error Console. Running "eval" in the Error Console while viewing malicious content could possibly cause Thunderbird to execute arbitrary code with the privileges of the user running Thunderbird. An out-of-bounds memory read flaw was found in the way Thunderbird used the format-number feature of XSLT . Malicious content could possibly cause an information leak, or cause Thunderbird to crash. A flaw was found in the location object implementation in Thunderbird. Malicious content could use this flaw to possibly allow restricted content to be loaded. Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Gary Kwong, Christian Holler, Jesse Ruderman, John Schoenick, Vladimir Vukicevic, Daniel Holbert, Abhishek Arya, Frederic Hoguin, miaubiz, Arthur Gerkis, Nicolas Gregoire, moz_bug_r_a4, and Colby Russell as the original reporters of these issues. Note: All issues except CVE-2012-3969 and CVE-2012-3970 cannot be exploited by a specially-crafted HTML mail message as JavaScript is disabled by default for mail messages. They could be exploited another way in Thunderbird, for example, when viewing the full remote content of an RSS feed. All Thunderbird users should upgrade to this updated package, which contains Thunderbird version 10.0.7 ESR, which corrects these issues. After installing the update, Thunderbird must be restarted for the changes to take effect.