Vulnerability Note VU#759385

RealNetworks player "Lyrics3" buffer overflow

Overview

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

I. Description

The RealNetworksRealPlayer 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.

II. Impact

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

III. Solution

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.

Systems Affected

Vendor	Status	Date Updated
RealNetworks, Inc.	Vulnerable	16-Nov-2007

References

http://secunia.com/advisories/27361/
http://service.real.com/realplayer/security/10252007_player/en/
http://www.ngssoftware.com/advisories/high-risk-vulnerability-in-real-player-id3-tags/

Credit

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

Date Public	10/29/2007
Date First Published	11/16/2007 03:06:21 PM
Date Last Updated	11/16/2007
CERT Advisory
CVE Name	CVE-2007-5080
Metric	22.27
Document Revision	21