Advisory Details

December 10th, 2010

RealNetworks RealPlayer Multi-Rate Audio Remote Code Execution Vulnerability

ZDI-10-266
ZDI-CAN-473

CVE ID CVE-2010-4375
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS RealNetworks
AFFECTED PRODUCTS RealPlayer
TIPPINGPOINT™ IPS CUSTOMER PROTECTION TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8441. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows 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 when parsing a RealMedia file containing a malformed multi-rate audio stream. The application explicitly trusts two 16-bit values in this data structure which are then used to calculate the size used for an allocation. When data is written to this allocated buffer, an overflow will occur which can lead to code execution under the context of the current user.

VENDOR RESPONSE RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/12102010_player/en/
DISCLOSURE TIMELINE
  • 2009-04-15 - Vulnerability reported to vendor
  • 2010-12-10 - Coordinated public release of advisory
CREDIT Anonymous
BACK TO ADVISORIES