Advisory Details

March 22nd, 2012

RealNetworks RealPlayer RealAudio coded_frame_size Remote Code Execution

CVE ID	CVE-2012-0927
CVSS SCORE	9.0, AV:N/AC:L/Au:N/C:P/I:P/A:C
AFFECTED VENDORS	RealNetworks
AFFECTED PRODUCTS	RealPlayer
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. User interaction is required in that a target must visit a malicious page or open a malicious file. The flaw exists within cook.dll, specifically the handling of a RealAudio 2.0 file. When parsing the RA2 header a coded_frame_sz element is used to calculate the size for an allocation. This value is not properly verified before unpacking stream data into this new location. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the process.
ADDITIONAL DETAILS	RealNetworks has issued an update to correct this vulnerability. More details can be found at: http://service.real.com/realplayer/security/02062012_player/en/
DISCLOSURE TIMELINE	2011-10-21 - Vulnerability reported to vendor 2012-03-22 - Coordinated public release of advisory
CREDIT	Luigi Auriemma

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