Article ID: 899587 - Last Review: September 30, 2011 - Revision: 3.0

MS05-042: Vulnerabilities in Kerberos could allow denial of service, information disclosure, and spoofing

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Note The security update contains some security-related changes to functionality. Besides the changes that are listed in each "Vulnerability Details" section of Security Bulletin MS05-042, the security update includes another change in functionality. An optional, but recommended, registry entry (RequireAsChecksum) has been added to help provide additional protection for potential future PKINIT-related vulnerabilities. PKINIT is an Internet Engineering Task Force (IETF) Internet Draft for "Public Key Cryptography for Initial Authentication in Kerberos." For more information, click the following article number to view the article in the Microsoft Knowledge Base:
904766  (http://support.microsoft.com/kb/904766/ ) How to modify the RequireAsChecksum registry entry after you install security update 899587
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Microsoft has released security bulletin MS05-042. The security bulletin contains all the relevant information about the security update. This information includes file manifest information and deployment options. To view the complete security bulletin, visit one of the following Microsoft Web sites: For more information about the latest service pack for Windows Server 2003, click the following article number to view the article in the Microsoft Knowledge Base:
889100  (http://support.microsoft.com/kb/889100/ ) How to obtain the latest service pack for Windows Server 2003
APPLIES TO
  • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
  • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
  • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Small Business Server 2003 Standard Edition
  • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
  • Microsoft Windows Server 2003 Service Pack 1, when used with:
    • Microsoft Windows Server 2003, Web Edition
    • Microsoft Windows Server 2003, Standard Edition (32-bit x86)
    • Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
    • Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
    • Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems
    • Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
  • Microsoft Windows Server 2003, Standard x64 Edition
  • Microsoft Windows Server 2003, Enterprise x64 Edition
  • Microsoft Windows Server 2003, Datacenter x64 Edition
  • Microsoft Windows XP Tablet PC Edition
  • Microsoft Windows XP Media Center Edition 2005 Update Rollup 2
  • Microsoft Windows XP Media Center Edition 2005
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Small Business Server 2000 Standard Edition
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Keywords: 
kbwinserv2003sp2fix kbhotfixserver kbqfe kbsecurity kbsecbulletin kbsecvulnerability kbwinxppresp2fix kbbug kbfix kbwinserv2003presp1fix kbwin2000presp5fix kbwinnt400presp7fix KB899587