Vulnerability Note VU#353956

Microsoft Windows H.323 implementation fails to handle malformed requests

Overview

A vulnerabilities in Microsoft Windows' implementation of the multimedia telephony protocol H.323 could lead to the ability to remotely execute arbitrary code on the system.

I. Description

Microsoft Windows' implementation of the H.323 protocol contains a buffer overflow in the handling of requests. An attacker may be able to send a crafted request to the vulnerable system and exploit this vulnerability to execute arbitrary code. This vulnerability affects the following systems:

Windows XP
Windows Server 2003
Windows 2000
Windows 98, 98 SE, ME
Systems running a stand-alone version of NetMeeting prior to version 3.01 (4.4.3399)
II. Impact
An attacker may be able to send a crafted request to the vulnerable system and exploit this vulnerability to execute arbitrary code.
III. Solution
Apply a patch from the vendor

Microsoft Security Bulletin MS04-011 contains patch information to resolve this issue.

Systems Affected

Vendor	Status	Date Updated
Microsoft Corporation	Vulnerable	14-Apr-2004

References

http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx

Credit

Thanks to Microsoft for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

Date Public	04/13/2004
Date First Published	04/14/2004 10:27:17 AM
Date Last Updated	04/14/2004
CERT Advisory
CVE-ID(s)	CAN-2004-0117
NVD-ID(s)	CAN-2004-0117
US-CERT Technical Alerts
Metric	34.26
Document Revision	3

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