Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and we presume that with enough effort at least some of these could be exploited to run arbitrary code. In general these flaws cannot be exploited through email in the Thunderbird and SeaMonkey products because scripting is disabled, but are potentially a risk in browser or browser-like contexts in those products. Reference: http://www.mozilla.org/security/announce/2012/mfsa2012-57.html https://bugzilla.mozilla.org/buglist.cgi?bug_id=745158,758408,761831,764176,777806,775206,778765 Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Gary Kwong, Christian Holler, Jesse Ruderman, John Schoenick, Vladimir Vukicevic and Daniel Holbert as the original reporters. These flaws affect Firefox 10.0.6 ESR and Firefox 14.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2012:1211 https://rhn.redhat.com/errata/RHSA-2012-1211.html
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 5 Via RHSA-2012:1210 https://rhn.redhat.com/errata/RHSA-2012-1210.html