Advisory Details

August 26th, 2010

RealNetworks RealPlayer FLV Parsing Multiple Integer Overflow Vulnerabilities

ZDI-10-167
ZDI-CAN-620

CVE ID CVE-2010-3000
CVSS SCORE 10, (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 10464. 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. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the module responsible for handling the FLV file format. While parsing the HX_FLV_META_AMF_TYPE_MIXEDARRAY and the HX_FLV_META_AMF_TYPE_ARRAY data types the ParseKnownType function makes two improper calculations that can force integers to wrap. A remote attacker can exploit these vulnerabilities to execute arbitrary code under the context of the user playing the file.

VENDOR RESPONSE RealNetworks has issued an update to correct this vulnerability. More details can be found at:
http://service.real.com/realplayer/security/08262010_player/en/
DISCLOSURE TIMELINE
  • 2009-12-04 - Vulnerability reported to vendor
  • 2010-08-26 - Coordinated public release of advisory
CREDIT Sebastian Apelt, siberas
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