TippingPoint Zero Day Initiative
 

RealNetworks RealPlayer Advanced Audio Coding Remote Code Execution Vulnerability

ZDI-10-267: December 10th, 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 10700. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks Real Player. 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 within the application's implementation of the Advanced Audio Coding compression format. When decoding a conditional component of a data block within an AAC frame the application will decompress lossy audio sample data outside the bounds of a buffer. This memory corruption can lead to code execution under the context of the application.

Vendor Response

RealNetworks has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2010-11-09 - Vulnerability reported to vendor
    2010-12-10 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Damian Put