JavaScriptCore in WebKit on Apple iPhone before 2.0 and iPod touch before 2.0 does not properly perform runtime garbage collection, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via unspecified vectors that trigger memory corruption, a different vulnerability than CVE-2008-2317.

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.