Mozilla Firefox is an open source web browser. XULRunner provides the XULRuntime environment for Mozilla Firefox.Several flaws were found in the processing of malformed web content. A webpage containing malicious content could cause Firefox to crash or,potentially, execute arbitrary code with the privileges of the user runningFirefox. (CVE-2014-1547, CVE-2014-1555, CVE-2014-1556, CVE-2014-1557)Red Hat would like to thank the Mozilla project for reporting these issues.Upstream acknowledges Christian Holler, David Keeler, Byron Campen, JethroBeekman, Patrick Cozzi, and Mozilla community member John as the originalreporters of these issues.For technical details regarding these flaws, refer to the Mozilla securityadvisories for Firefox 24.7.0 ESR. You can find a link to the Mozillaadvisories in the References section of this erratum.All Firefox users should upgrade to these updated packages, which containFirefox version 24.7.0 ESR, which corrects these issues. After installingthe update, Firefox must be restarted for the changes to take effect.