Advisory Details

December 10th, 2010

RealNetworks RealPlayer AAC MLLT Atom Parsing Remote Code Execution Vulnerability

ZDI-10-273
ZDI-CAN-569

CVE ID CVE-2010-2999
CVSS SCORE 9.0, 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 ['8415']. 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 an .AAC file containing a malformed MLLT atom. The application utilizes a size specified in this data structure for allocation of a list of objects. To calculate the size for the allocation, the application will multiply this length by 8. If the multiplication results in a value greater than 32 bits an integer overflow will occur. When copying data into this buffer heap corruption will occur which can lead to code execution under the context of the currently logged in user.

ADDITIONAL DETAILS 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
  • 2009-08-20 - Vulnerability reported to vendor
  • 2010-12-10 - Coordinated public release of advisory
CREDIT Anonymous
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