MS01-043: NNTP Service in Windows 2000 Contains a Memory Leak

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Article ID: 303984 - View products that this article applies to.
This article was previously published under Q303984
This article has been archived. It is offered "as is" and will no longer be updated.

For additional information about a similar problem that may occur in Microsoft Windows NT 4.0, click the following article number to view the article in the Microsoft Knowledge Base:
304876 NNTP Service in Windows NT 4.0 Contains Memory Leak
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SYMPTOMS

The Network News Transfer Protocol (NNTP) service in Windows 2000 contains a memory leak in a routine that processes news postings. Each time a posting that contains a particular construction is processed, the memory leak causes a small amount of memory to no longer be available for use. If an attacker were to send a large number of posts, the server memory could be depleted to the point that normal service would be disrupted. An affected server could be restored to normal service by rebooting the server.

Mitigating Factors

  • The default configuration of NNTP is not affected by this vulnerability because no newsgroups are configured by default.
  • This vulnerability would not enable an attacker to usurp any administrative control or compromise data on the computer.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The following files are available for download from the Microsoft Download Center:
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Release Date: August 14, 2001

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later:
   Date         Time   Version        Size     File name
   -------------------------------------------------------
   18-Jul-2001  13:28  5.0.2195.3881  610,576  Nntpsvc.dll
				

STATUS

Microsoft has confirmed that this problem may cause a degree of security vulnerability in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 3.

MORE INFORMATION

For more information about this vulnerability, visit the following Microsoft Web site:
http://www.microsoft.com/technet/security/bulletin/MS01-043.mspx
For additional information about how to obtain a hotfix for Windows 2000 Datacenter Server, click the article number below to view the article in the Microsoft Knowledge Base:
265173 The Datacenter Program and Windows 2000 Datacenter Server Product
For additional information about how to install multiple hotfixes with only one reboot, click the article number below to view the article in the Microsoft Knowledge Base:
296861 Use QChain.exe to Install Multiple Hotfixes with One Reboot

Properties

Article ID: 303984 - Last Review: October 24, 2013 - Revision: 5.1
APPLIES TO
  • Microsoft Windows 2000 Service Pack 1
  • Microsoft Windows 2000 Service Pack 2
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Advanced Server
Keywords: 
kbnosurvey kbarchive kbbug kbfix kbwin2000presp3fix kbsysadmin kbwin2000sp3fix kbsecurity kbsecbulletin KB303984

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