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Credit:
The information has been provided by Sean de Regge.
The original article can be found at: http://www.zerodayinitiative.com/advisories/ZDI-11-265/
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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 within qcpfformat.dll, which is responsible for parsing QCP media files. The process creates a static 256 byte allocation on the heap and trusts a user-supplied counter from the file within a memory copy loop. As the source data is also user-supplied from the file, this can be abused by a remote attacker to execute arbitrary code running in the context of the web browser.
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-2011-2950
Disclosure Timeline:
2011-04-01 - Vulnerability reported to vendor
2011-08-16 - Coordinated public release of advisory
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