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Credit:
The information has been provided by Donato Ferrante and Andrzej Dyjak.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-266/
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Vulnerable Systems:
* RealNetworks RealPlayer
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 due to the application using a size defined in a header in order to allocate some number of bytes. When processing an AAC raw_data_frame, the application will use the product of the original length and a field inside one of its elements. During the copy operation, this length will be larger than the amount that was allocated for which will cause a buffer overflow and can lead to code execution under the context of the application.
Patch Availability:
RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/08162011_player/en/
CVE Information:
CVE-2011-2951
Disclosure Timeline:
2011-05-13 - Vulnerability reported to vendor
2011-08-16 - Coordinated public release of advisory
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