Security researcher Aki Helin reported that combining lists, floats, and multiple columns could trigger a potentially exploitable buffer overflow. In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts. External Reference: http://www.mozilla.org/security/announce/2013/mfsa2013-89.html Acknowledgements: Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Aki Helin as the original reporter.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2013:1269 https://rhn.redhat.com/errata/RHSA-2013-1269.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2013:1268 https://rhn.redhat.com/errata/RHSA-2013-1268.html