Red Hat Enterprise Linux 5 and 6: Addressing Critical Firefox Security Flaw

Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox.
Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2013-0744, CVE-2013-0746, CVE-2013-0750, CVE-2013-0753, CVE-2013-0754, CVE-2013-0762, CVE-2013-0766, CVE-2013-0767, CVE-2013-0769)
A flaw was found in the way Chrome Object Wrappers were implemented. Malicious content could be used to cause Firefox to execute arbitrary code via plug-ins installed in Firefox. (CVE-2013-0758)
A flaw in the way Firefox displayed URL values in the address bar could allow a malicious site or user to perform a phishing attack. (CVE-2013-0759)
An information disclosure flaw was found in the way certain JavaScript functions were implemented in Firefox. An attacker could use this flaw to bypass Address Space Layout Randomization (ASLR) and other security restrictions. (CVE-2013-0748)
For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 10.0.12 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 Atte Kettunen, Boris Zbarsky, pa_kt, regenrecht, Abhishek Arya, Christoph Diehl, Christian Holler, Mats Palmgren, Chiaki Ishikawa, Mariusz Mlynski, Masato Kinugawa, and Jesse Ruderman as the original reporters of these issues.
All Firefox users should upgrade to these updated packages, which contain Firefox version 10.0.12 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.