The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via dynamic modification of a keyframe followed by access to the cssText of the keyframe.
lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html
lists.opensuse.org/opensuse-updates/2012-03/msg00042.html
rhn.redhat.com/errata/RHSA-2012-0387.html
rhn.redhat.com/errata/RHSA-2012-0388.html
secunia.com/advisories/48359
secunia.com/advisories/48402
secunia.com/advisories/48496
secunia.com/advisories/48513
secunia.com/advisories/48553
secunia.com/advisories/48561
secunia.com/advisories/48629
secunia.com/advisories/49055
www.mandriva.com/security/advisories?name=MDVSA-2012:032
www.mozilla.org/security/announce/2012/mfsa2012-17.html
www.securitytracker.com/id?1026801
www.securitytracker.com/id?1026803
www.securitytracker.com/id?1026804
www.ubuntu.com/usn/USN-1400-1
www.ubuntu.com/usn/USN-1400-2
www.ubuntu.com/usn/USN-1400-3
www.ubuntu.com/usn/USN-1400-4
www.ubuntu.com/usn/USN-1400-5
bugzilla.mozilla.org/show_bug.cgi?id=723446
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15066