The information has been provided by wushi.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-10-029/
* Apple WebKit on Mac OS X v10.4.11
* Apple WebKit on Mac OS X Server v10.4.11
* Apple WebKit on Mac OS X v10.5.8
* Apple WebKit on Mac OS X Server v10.5.8
* Apple WebKit on Mac OS X v10.6.1 or later
* Apple WebKit on Mac OS X Server v10.6.1
* Apple WebKit on Windows 7
* Apple WebKit on Windows Vista
* Apple WebKit on Windows XP
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.
A use-after-free issue exists in the handling of HTML object element fallback content. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved memory reference tracking.
Apple has issued an update to correct this vulnerability. More details can be found at:
2009-10-21 - Vulnerability reported to vendor
2010-03-15 - Coordinated public release of advisory