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Credit:
The information has been provided by wushi and Jose A. Vazquez .
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-098/
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Vulnerable Systems:
* Apple Webkit
User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the way the WebKit library implements the requirements required for a Runin box as outlined in the Visual Formatting Model listed in the CSS 2.1 Specification. When promoting a run-in element the application will incorrectly free one of the child elements of the run-in. Later, when attempting to do layout for this element, the application will access the freed element due to the dangling reference. This can lead to code execution under the context of the application.
Patch Availability:
Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT4554
CVE Information:
CVE-2011-0132
Disclosure Timeline:
2010-11-29 - Vulnerability reported to vendor
2011-03-02 - Coordinated public release of advisory
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