It was found that mozilla would crash when rendering certain SVG files, containing XSLT. A web page containing malicious content could cause Firefox to crash or execute arbitrary code with the privileges of the user running Firefox.
External References: http://www.mozilla.org/security/announce/2012/mfsa2012-08.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2012:0080 https://rhn.redhat.com/errata/RHSA-2012-0080.html
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2012:0079 https://rhn.redhat.com/errata/RHSA-2012-0079.html