Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to "callbacks for HTML elements."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7403
http://www.vupen.com/english/advisories/2011/0552
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2010/2722
http://www.ubuntu.com/usn/USN-1006-1
http://www.securitytracker.com/id?1023708
http://www.securityfocus.com/bid/38671
http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
http://support.apple.com/kb/HT4225
http://support.apple.com/kb/HT4070
http://secunia.com/advisories/43068
http://secunia.com/advisories/41856
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041436.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041432.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041383.html
http://lists.apple.com/archives/security-announce/2010/Mar/msg00000.html
http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html