Firefox security update


Systems Affected

Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux WS/Desktop 5
Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7

Threat Level



Updated Firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.


The Red Hat Security Response Team has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 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-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, Jethro Beekman, Patrick Cozzi, and Mozilla community member John as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 24.7.0 ESR. You can find a link to the Mozilla advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain Firefox version 24.7.0 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.


Execute Arbitrary Code/Commands -- Remote with User Interaction.

Solution/ Workarounds




The information provided herein is on "as is" basis, without warranty of any kind.


© Copyright Sri Lanka CERT|CC. All Rights Reserved.