Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 do not properly restrict setting the home page through the dragging of a URL to the home button, which allows user-assisted remote attackers to execute arbitrary JavaScript code with chrome privileges via a javascript: URL that is later interpreted in the about:sessionrestore context.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15122
https://bugzilla.mozilla.org/show_bug.cgi?id=723808
https://bugzilla.mozilla.org/show_bug.cgi?id=719994
http://www.ubuntu.com/usn/USN-1401-1
http://www.ubuntu.com/usn/USN-1400-5
http://www.ubuntu.com/usn/USN-1400-4
http://www.ubuntu.com/usn/USN-1400-3
http://www.ubuntu.com/usn/USN-1400-2
http://www.ubuntu.com/usn/USN-1400-1
http://www.securitytracker.com/id?1026804
http://www.securitytracker.com/id?1026803
http://www.securitytracker.com/id?1026801
http://www.securityfocus.com/bid/52460
http://www.mozilla.org/security/announce/2012/mfsa2012-16.html
http://www.mandriva.com/security/advisories?name=MDVSA-2012:032
http://www.mandriva.com/security/advisories?name=MDVSA-2012:031
http://www.debian.org/security/2012/dsa-2458
http://www.debian.org/security/2012/dsa-2433
http://secunia.com/advisories/48920
http://secunia.com/advisories/48823
http://secunia.com/advisories/48629
http://secunia.com/advisories/48624
http://secunia.com/advisories/48561
http://secunia.com/advisories/48553
http://secunia.com/advisories/48513
http://secunia.com/advisories/48496
http://secunia.com/advisories/48495
http://secunia.com/advisories/48414
http://secunia.com/advisories/48402
http://secunia.com/advisories/48359
http://rhn.redhat.com/errata/RHSA-2012-0388.html
http://rhn.redhat.com/errata/RHSA-2012-0387.html
http://lists.opensuse.org/opensuse-updates/2012-03/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html