Zero Day Initiative Advisory 10-029 – This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple WebKit. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists in the WebCore’s HTMLObjectElement::renderFallBackContent() method. By rewriting an HTML element via the document’s innerHTML() method a memory corruption occurs resulting from a call-after-free. This can be leveraged to execute arbitrary code under the context of the current user.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/87271/ZDI-10-029.txt
Source: https://packetstormsecurity.com/files/87271/Zero-Day-Initiative-Advisory-10-029.html