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Credit:
The information has been provided by wushi .
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-240/
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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 library's support of SVG markers. When updating a marker, the application will duplicate the reference of an object without updating it's reference count. When freeing this object, a use-after-free vulnerability can be made to occur. This can be leveraged by a remote attacker to execute code under the context of the user running 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-2011-1453
Disclosure Timeline:
2011-01-21 - Vulnerability reported to vendor
2011-07-27 - Coordinated public release of advisory
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