Microsoft MSN Messenger Video Conversation Buffer Overflow Vulnerability

BID:25461

Info

Microsoft MSN Messenger Video Conversation Buffer Overflow Vulnerability

Bugtraq ID: 25461
Class: Boundary Condition Error
CVE: CVE-2007-2931
Remote: Yes
Local: No
Published: Aug 28 2007 12:00AM
Updated: Sep 13 2007 03:51PM
Credit: wushi of Team509 is credited with the discovery of this vulnerability.
Vulnerable: Microsoft Windows Live Messenger 8.0
Microsoft MSN Messenger Service 7.5
Microsoft MSN Messenger Service 7.0 beta
Microsoft MSN Messenger Service 7.0
Microsoft MSN Messenger Service 6.2
Not Vulnerable: Microsoft Windows Live Messenger 8.1
Microsoft MSN Messenger Service 7.0.820

Discussion

Microsoft MSN Messenger Video Conversation Buffer Overflow Vulnerability

Microsoft MSN Messenger is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data.

Successfully exploiting this issue allows remote attackers to execute arbitrary code in the context of the application. Failed exploit attempts will likely result in denial-of-service conditions.

Exploit / POC

Microsoft MSN Messenger Video Conversation Buffer Overflow Vulnerability

To exploit this issue, an attacker must entice an unsuspecting user to accept a malicious video conversation invitation.

The following proof-of-concept exploit pack is available; this exploit is reported to work on the Chinese version of Windows 2000 SP4.

Solution / Fix

Microsoft MSN Messenger Video Conversation Buffer Overflow Vulnerability

Solution:
The vendor has released advisory MS07-054 to address this issue. Users are advised to use the upgrade feature of the affected software to upgrade to the latest release. Please see the vendor advisory for more information.


Microsoft MSN Messenger Service 7.0

Microsoft MSN Messenger Service 7.0 beta

Microsoft MSN Messenger Service 6.2

Microsoft Windows Live Messenger 8.0

References

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