WebKit in Apple Safari before 4.0 does not properly initialize memory for Attr DOM objects, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted HTML document.
https://exchange.xforce.ibmcloud.com/vulnerabilities/51265
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2009/1522
http://www.ubuntu.com/usn/USN-857-1
http://www.ubuntu.com/usn/USN-836-1
http://www.securityfocus.com/bid/35310
http://www.debian.org/security/2009/dsa-1950
http://support.apple.com/kb/HT3613
http://securitytracker.com/id?1022345
http://secunia.com/advisories/43068
http://secunia.com/advisories/37746
http://secunia.com/advisories/36790
http://secunia.com/advisories/35379
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html