RedHat Update for firefox RHSA-2012:0142-01

Solution
Please Install the Updated Packages.
Insight
Mozilla Firefox is an open source web browser. A heap-based buffer overflow flaw was found in the way Firefox handled PNG (Portable Network Graphics) images. A web page containing a malicious PNG image could cause Firefox to crash or, possibly, execute arbitrary code with the privileges of the user running Firefox. (CVE-2011-3026) All Firefox users should upgrade to this updated package, which corrects this issue. After installing the update, Firefox must be restarted for the changes to take effect.
Affected
firefox on Red Hat Enterprise Linux AS version 4, Red Hat Enterprise Linux ES version 4, Red Hat Enterprise Linux WS version 4
References