Yahoo! Messenger YVerInfo.DLL ActiveX Control Multiple Buffer Overflow Weaknesses

BID:25494

Info

Yahoo! Messenger YVerInfo.DLL ActiveX Control Multiple Buffer Overflow Weaknesses

Bugtraq ID: 25494
Class: Boundary Condition Error
CVE: CVE-2007-4515
Remote: Yes
Local: No
Published: Aug 30 2007 12:00AM
Updated: Nov 04 2008 07:35PM
Credit: The discover of this issue wishes to remain anonymous. This issue was disclosed in the referenced iDefense advisory.
Vulnerable: Yahoo! Messenger 8.1 .402
Yahoo! Messenger 8.1
Yahoo! Messenger 8.1.0.239
Yahoo! Messenger 8.1.0.209
Not Vulnerable: Yahoo! Messenger 8.1 .419

Discussion

Yahoo! Messenger YVerInfo.DLL ActiveX Control Multiple Buffer Overflow Weaknesses

Yahoo! Messenger is prone to multiple buffer-overflow weaknesses because it fails to bounds-check user-supplied data before copying it into insufficiently sized buffers.

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

These issues affect Yahoo! Messenger 8.1; other versions may also be affected.

Exploit / POC

Yahoo! Messenger YVerInfo.DLL ActiveX Control Multiple Buffer Overflow Weaknesses

The following exploit is available:

Solution / Fix

Yahoo! Messenger YVerInfo.DLL ActiveX Control Multiple Buffer Overflow Weaknesses

Solution:
Yahoo! has released an update. Please see the vendor references for more information.


Yahoo! Messenger 8.1.0.209

Yahoo! Messenger 8.1.0.239

Yahoo! Messenger 8.1

Yahoo! Messenger 8.1 .402

References

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