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.
lists.apple.com/archives/security-announce/2009/jun/msg00002.html
lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
osvdb.org/55015
secunia.com/advisories/35379
secunia.com/advisories/36790
secunia.com/advisories/37746
secunia.com/advisories/43068
securitytracker.com/id?1022345
support.apple.com/kb/HT3613
www.debian.org/security/2009/dsa-1950
www.securityfocus.com/bid/35260
www.securityfocus.com/bid/35310
www.ubuntu.com/usn/USN-836-1
www.ubuntu.com/usn/USN-857-1
www.vupen.com/english/advisories/2009/1522
www.vupen.com/english/advisories/2011/0212
exchange.xforce.ibmcloud.com/vulnerabilities/51265