Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. A web page containing a malicious Scalable Vector Graphics image file could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. Two flaws were found in the way Firefox rendered certain images using WebGL. A web page containing malicious content could cause Firefox to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Firefox. A flaw was found in the way Firefox decoded embedded bitmap images in Icon Format files. A web page containing a malicious ICO file could cause Firefox to crash or, under certain conditions, possibly execute arbitrary code with the privileges of the user running Firefox. A flaw was found in the way the "eval" command was handled by the Firefox Web Console. Running "eval" in the Web Console while viewing a web page containing malicious content could possibly cause Firefox to execute arbitrary code with the privileges of the user running Firefox. An out-of-bounds memory read flaw was found in the way Firefox used the format-number feature of XSLT . A web page containing malicious content could possibly cause an information leak, or cause Firefox to crash. It was found that the SSL certificate information for a previously visited site could be displayed in the address bar while the main window displayed a new page. This could lead to phishing attacks as attackers could use this flaw to trick users into believing they are viewing a trusted site. A flaw was found in the location object implementation in Firefox. Malicious content could use this flaw to possibly allow restricted content to be loaded. For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 10.0.7 ESR. You can find a link to the Mozilla advisories in the References section of this erratum. 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, Mark Poticha, moz_bug_r_a4, and Colby Russell as the original reporters of these issues. All Firefox users should upgrade to these updated packages, which contain Firefox version 10.0.7 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.