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Credit:
The information has been provided by Ivan Fratric.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-288/
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Vulnerable Systems:
* Microsoft Internet Explorer
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 verifies arguments for a certain operation performed on an element. When parsing one of the operands of a method, the application will pass the argument straight to a method that will use the variant as an index. Due to bypassing the argument check, an aggressor can set the index to point to data outside the bounds of the array. This can lead to code execution under the context of the application.
Patch Availability:
Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://technet.microsoft.com/en-us/security/bulletin/ms11-081
CVE Information:
CVE-2011-1999
Disclosure Timeline:
2011-06-29 - Vulnerability reported to vendor
2011-10-15 - Coordinated public release of advisory
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