search menu icon-carat-right cmu-wordmark

CERT Coordination Center

RealNetworks player "Lyrics3" buffer overflow

Vulnerability Note VU#759385

Original Release Date: 2007-11-16 | Last Revised: 2007-11-16


Multiple RealNetworks media players contain a buffer overflow which could allow a remote attacker to execute arbitrary code on an affected system.


The RealNetworks RealPlayer and Helix Player applications allow users to view local and remote audio and video content. These players include support for a number of different media formats, including the MP3 audio-encoding format. A heap-based buffer overflow exists in the way that these players handle the Lyrics3 v2.00 tags in MP3 files. A remote, unauthenticated attacker with the ability to supply a specially crafted MP3 file could exploit this vulnerability to execute arbitrary code on an affected system.


A remote, unauthenticated attacker could execute arbitrary code with the privileges of the user running a vulnerable application.


Apply an update

RealNetworks has published a Security Update to address this issue. Please see the Systems Affected section for fix availability from specific vendors.

Vendor Information


RealNetworks, Inc. Affected

Notified:  October 31, 2007 Updated: November 16, 2007



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


RealNetworks has issued a Security Update to correct this vulnerability. Users are encouraged to review this Security Update and apply the relevant patches.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

Group Score Vector



This vulnerability was reported by John Heasman of NGSSoftware. NGSSoftware credits an anonymous researcher with reporting this vulnerability to them.

This document was written by Joseph W. Pruszynski.

Other Information

CVE IDs: CVE-2007-5080
Severity Metric: 22.28
Date Public: 2007-10-29
Date First Published: 2007-11-16
Date Last Updated: 2007-11-16 20:06 UTC
Document Revision: 21

Sponsored by CISA.