Microsoft KB Archive/280446

= Denial of Service Attack Causes TCP Stack to Consume All the Memory on a Server =

Article ID: 280446

Article Last Modified on 3/1/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1

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This article was previously published under Q280446



SYMPTOMS
During a denial-of-service attack, the Transmission Control Protocol (TCP) stack may use up all the memory on the computer that is being attacked.

When this happens, if you use the PING command, you receive an &quot;out of quota&quot; error message. If you run the Ipconfig.exe program, you receive an &quot;application could not be initialized properly&quot; error message and a run-time error. You cannot gain access to the Network tool in Control Panel. After the attack, you cannot start any programs in Windows 2000. The computer becomes useless as a network server.



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 English version of this fix should have the following file attributes or later:

  Date        Time    Version        Size    File name --  01/18/2001  07:57a  5.0.2195.2848  311,472  tcpip.sys 10/25/2000 05:02p  5.0.2195.2572   16,240  tdi.sys



STATUS
Microsoft has confirmed that this is a problem in Microsoft Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Keywords: kbbug kbfix kbwin2000presp2fix kbnetwork kbstack KB280446

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