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Credit:
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-242/
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Vulnerable Systems:
* Apple Safari
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 how the application frees references from a particular element. When freeing these references, the application will fail to remove the reference from the rendering object. Later upon trying to free the element again, the application will access the freed reference which 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/HT4808
CVE Information:
CVE-2011-0255
Disclosure Timeline:
2011-07-12 - Vulnerability reported to vendor
2011-07-27 - Coordinated public release of advisory
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