TippingPoint Zero Day Initiative

RealNetworks RealPlayer Multiple Protocol Handlers Remote Code Execution Vulnerability

ZDI-10-213: October 15th, 2010


CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote 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.

The specific flaw exists within the RealPlayer ActiveX control. This module is responsible for handling the tfile, pnmm, cdda, protocol handlers. While parsing a long argument ending with ".smil" an attacker can overflow a buffer on the heap. This can be abused to execute arbitrary code under the context of the user invoking the control.

Vendor Response

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

Disclosure Timeline

    2010-06-02 - Vulnerability reported to vendor
    2010-10-15 - Coordinated public release of advisory


This vulnerability was discovered by: