TippingPoint Zero Day Initiative

RealNetworks RealPlayer SMIL getAtom Remote Code Execution Vulnerability

ZDI-10-007: January 21st, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5907. 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 within the smlrender.dll library responsible for parsing SMIL files. A lack of proper string length checks can result in the overflow of a static heap buffer. Exploitation of this overflow can lead to arbitrary code execution under the context of the user running the process.

Vendor Response

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

Disclosure Timeline

    2008-02-07 - Vulnerability reported to vendor
    2010-01-21 - Coordinated public release of advisory


This vulnerability was discovered by: