Advisory Details

November 28th, 2011

RealNetworks RealPlayer RV10 Sample Height Parsing Remote Code Execution Vulnerability

CVE ID	CVE-2011-4252
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 ['11662']. 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 Real Player. 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 when the application attempts to parse a height out of the RV10 codec object. The application will incorrectly treat the value as a signed integer and will its value as the count within a loop that populates rows of sample data within a buffer. This can allow for memory corruption which can lead to code execution under the context of 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	2011-08-12 - Vulnerability reported to vendor 2011-11-28 - Coordinated public release of advisory
CREDIT	Damian Put

BACK TO ADVISORIES