Advisory Details

March 22nd, 2012

RealNetworks RealPlayer mp4fformat rdrf Remote Code Execution Vulnerability

CVE ID	CVE-2011-4262
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	RealNetworks
AFFECTED PRODUCTS	RealPlayer
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['12151']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of 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 mp4fformat. The vulnerability resides in adding 1 to a trusted size value being taken out of the file data. The size value is then used in an operator_new call. This can be leveraged when the pointer returned from the operator_new is used in a memcpy as the destination buffer pointer. This vulnerability can result in remote code execution under the context of the user running the application.
ADDITIONAL DETAILS	RealNetworks has issued an update to correct this vulnerability. More details can be found at: http://service.real.com/realplayer/security/11182011_player/en/
DISCLOSURE TIMELINE	2011-09-08 - Vulnerability reported to vendor 2012-03-22 - Coordinated public release of advisory
CREDIT	Alexander Gavrun

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