WebCore in Apple Safari does not properly perform garbage collection of JavaScript document elements, which allows remote attackers to execute arbitrary code or cause a denial of service (heap corruption and application crash) via a reference to the ownerNode property of a copied CSSStyleSheet object of a STYLE element, as originally demonstrated on Apple iPhone before 2.0 and iPod touch before 2.0, a different vulnerability than CVE-2008-1590.
lists.apple.com/archives/security-announce//2008/Nov/msg00001.html
lists.apple.com/archives/security-announce/2008//Jul/msg00001.html
secunia.com/advisories/31074
secunia.com/advisories/32706
support.apple.com/kb/HT3298
www.securityfocus.com/archive/1/494777/100/0/threaded
www.securityfocus.com/bid/30186
www.vupen.com/english/advisories/2008/2094/references
www.zerodayinitiative.com/advisories/ZDI-08-045/
exchange.xforce.ibmcloud.com/vulnerabilities/43737