Microsoft COM+ contains a memory management flaw

Overview

Microsoft COM+ contains a vulnerability due to a memory management flaw that may allow an attacker to take complete control of an affected system.

Description

Microsoft gives the following definition of COM+:

_COM+ is the next step in the evolution of the Microsoft Component Object Model and Microsoft Transaction Server (MTS). COM+ handles resource management tasks, such as thread allocation and security. It automatically makes applications more scalable by providing thread pooling, object pooling, and just-in-time object activation. COM+ also helps protect the integrity of data by providing transaction support even if a transaction spans multiple databases over a network. For information about COM+, visit the following Microsoft Web site. _Microsoft COM+ contains a flaw in the process used to create and utilize memory that may allow an attacker to take complete control of a system. The attacker may be able to execute arbitrary code on the system and take control of it by sending a specially-crafted network packet to the system.

Note that Windows 2000 and Windows XP SP1 systems are primarily at risk. Windows XP SP2 and Windows Server 2003 (including SP1) are only vulnerable to a local, authenticated attacker exploiting this flaw. This vulnerability is being actively exploited.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code and take complete control of an affected system.

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Solution

Apply an update
Please see Microsoft Security Bulletin MS05-051 for more information.

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Vendor Information

950516

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Updated: October 11, 2005

Status

Affected

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.

Addendum

Please see Microsoft Security Bulletin MS05-051 for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23950516 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.microsoft.com/technet/security/Bulletin/MS05-051.mspx&gt;
• <http://secunia.com/advisories/17161&gt;
• <http://www.securityfocus.com/bid/15057&gt;
• <http://xforce.iss.net/xforce/xfdb/22473&gt;
• <http://osvdb.org/displayvuln.php?osvdb_id=19902&gt;
• <http://www.f-secure.com/weblog/archives/archive-122005.html#00000737&gt;

Acknowledgements

Microsoft reported this vulnerability, and in turn thank Cesar Cerrudo of Argeniss for information on the issue.

This document was written by Ken MacInnis.

Other Information

CVE IDs:	CVE-2005-1978
Severity Metric:	28.10 Date Public: