Advisory Details

January 27th, 2011

Realplayer vidplin.dll AVI Parsing Remote Code Execution Vulnerability

ZDI-11-033
ZDI-CAN-801

CVE ID CVE-2010-4393
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
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 10640. 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 SP. 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 the vidplin.dll module. A buffer is allocated according to the user supplied length value. User supplied data is then copied into the allocated buffer, without verifying length, allowing the data to be written past the bounds of the previously allocated buffer. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the user running RealPlayer.

ADDITIONAL DETAILS RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/01272011_player/en/
DISCLOSURE TIMELINE
  • 2010-09-14 - Vulnerability reported to vendor
  • 2011-01-27 - Coordinated public release of advisory
CREDIT Juan Pablo Lopez Yacubian
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