Microsoft KB Archive/279349

= Access Violation in Netlogon.dll Causes Domain Controller Server to Crash =

Article ID: 279349

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition

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This article was previously published under Q279349



SYMPTOMS
If a Windows 2000-based domain controller server experiences an access violation in Netlogon.dll, the server may crash.



CAUSE
This behavior can result if a client sends a data structure to a domain controller server and a certain field in the structure is uninitialized to indicate what information should come back. The structure is sent as a result of a generic pass-through authentication. Typically, the uninitialized variable is out of range and the remote procedure call (RPC) catches it. However, if the uninitialized variable is a 3, indicating that the structure is a NETLOGON_VALIDATION_SAM_INFO2, an access violation in Netlogon.dll causes the server to crash.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows 2000 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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

  Date        Time    Version       Size    File name 2/8/2001  9:12am  5.0.2195.2864 910,608  ntdsa.dll 2/8/2001  9:12am  5.0.2195.2865 366,352  netlogon.dll 2/8/2001  9:12am  5.0.2195.2808 311,056  netapi32.dll 1/29/2001 6:19am  5.0.2195.2862 108,816  msv1_0.dll 2/8/2001  9:12am  5.0.2195.2867 503,568  lsasrv.dll 1/29/2001 6:19am  5.0.2195.2862 198,928  kerberos.dll 2/8/2001  9:12am  5.0.2195.2862 140,560  kdcsvc.dll 2/8/2001  9:11am  5.0.2195.2867 521,488  instlsa5.dll 2/8/2001  9:12am  5.0.2195.2778  90,896  dnsrslvr.dll 2/8/2001  9:12am  5.0.2195.2785 133,904  dnsapi.dll 2/8/2001  9:12am  5.0.2195.2842 130,320  adsldpc.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



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: kbhotfixserver kbqfe kbbug kbfix kbqfe kbwin2000presp2fix KB279349

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