TippingPoint Zero Day Initiative

RealNetworks RealPlayer Library File Deletion Stack Overflow Vulnerability

ZDI-08-046: July 25th, 2008


Affected Vendors

Affected Products


TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5734. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on systems with vulnerable installations of the 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 in RealPlayer's rjbdll.dll module when handling the deletion of media library files. An attacker could exploit this vulnerability using an ActiveX control {FDC7A535-4070-4B92-A0EA-D9994BCC0DC5} to import a vulnerable file into the user's media library. Upon deletion of this file, an exploitable stack based buffer overflow can be triggered.

Vendor Response

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

Disclosure Timeline

    2007-11-02 - Vulnerability reported to vendor
    2008-07-25 - Coordinated public release of advisory


This vulnerability was discovered by: