TippingPoint Zero Day Initiative
 

RealNetworks RealPlayer Malformed IVR Pointer Index Remote Code Execution Vulnerability

ZDI-10-209: October 15th, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8468. For further product information on the TippingPoint IPS:

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 .IVR file containing malformed sample data. The application utilizes a index in this data stream for seeking into a list of objects. Due to the lack of constraints on this index, one can seek to an arbitrary object located in memory which will lead to 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:

Disclosure Timeline

    2009-08-20 - Vulnerability reported to vendor
    2010-10-15 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous