TippingPoint Zero Day Initiative
 

RealNetworks RealPlayer Cook Codec Channel Parsing Remote Code Execution Vulnerability

ZDI-12-046: March 20th, 2012

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 12128. 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 how the application parses information out of the codec-specific data located within a media description header. When making space for audio-sample data, the application will allocate a static size. When decoding sample data into this buffer, an overflow will occur which can lead to memory corruption that 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

    2011-08-12 - Vulnerability reported to vendor
    2012-03-20 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Damian Put