Advisory Details

January 21st, 2010

RealNetworks RealPlayer SIPR Codec Remote Code Execution Vulnerability

ZDI-10-008
ZDI-CAN-317

CVE ID CVE-2009-4244
CVSS SCORE 10.0, (AV:N/AC:L/Au:N/C:C/I:C/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 6514. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute code on vulnerable installations of RealNetworks RealPlayer. User interaction is required in that a user must open a malicious file or visit a malicious web site.

The specific flaw exists during the parsing of SIPR codec fields. Specifying a small length value can trigger an undersized heap allocation. This buffer can then subsequently be overflowed. This vulnerability can result in arbitrary code execution under the context of the currently logged in user.

VENDOR RESPONSE RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/01192010_player/en/
DISCLOSURE TIMELINE
  • 2008-05-12 - Vulnerability reported to vendor
  • 2010-01-21 - Coordinated public release of advisory
CREDIT Anonymous
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