MS12-068: Vulnerability in Windows Kernel could allow elevation of privilege: October 9, 2012

• Home users:
  http://www.microsoft.com/security/pc-security/bulletins/201210.aspx

  (http://www.microsoft.com/security/pc-security/bulletins/201210.aspx)
  Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:
  http://update.microsoft.com/microsoftupdate/

  (http://update.microsoft.com/microsoftupdate/)
• IT professionals:
  http://technet.microsoft.com/security/bulletin/MS12-068

  (http://technet.microsoft.com/security/bulletin/MS12-068)

How to obtain help and support for this security update

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Known issues with this security update

• After you install this security update on a computer that is running Windows Server 2008 Service Pack 2 (SP2), you may receive a Stop error message that resembles the following when a registry hive that has many registry entries and subkeys is loaded:
  
  
  STOP: 0x00000050 (parameter1, parameter2, parameter3, parameter4)
  
  
  To resolve this issue, install hotfix 2795491. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
  2795491

  (http://support.microsoft.com/kb/2795491/ )

  "0x00000050" Stop error after a registry hive that contains many registry entries and subkeys is loaded in Windows Server 2008 SP2
• After you install this security update on a computer that is running Windows XP or Windows Server 2003, upper memory blocks (UMBs) for MS-DOS-based applications become unavailable. To resolve this issue, install hotfix 2785487. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
  2785487

  (http://support.microsoft.com/kb/2785487/ )

  UMBs for MS-DOS-based applications are no longer available after you install update 2724197 or hotfix 2732488 on a computer that is running Windows XP SP3 or Windows Server 2003 SP2

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Windows XP and Windows Server 2003 file information

• The files that apply to a specific milestone (SPn) and service branch (QFE, GDR) are noted in the "SP requirement" and "Service branch" columns.
• GDR service branches contain only those fixes that are widely released to address widespread, critical issues. QFE service branches contain hotfixes in addition to widely released fixes.
• In addition to the files that are listed in these tables, this software update also installs an associated security catalog file (KBnumber.cat) that is signed with a Microsoft digital signature.

For all supported x86-based versions of Windows XP

For all supported x64-based versions of Windows Server 2003 and of Windows XP Professional x64 edition

For all supported x86-based versions of Windows Server 2003

For all supported IA-64-based versions of Windows Server 2003

Windows Vista and Windows Server 2008 file information

• The files that apply to a specific product, milestone (SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
  Collapse this tableExpand this table

  Version	Product	Milestone	Service branch
  6.0.6002.18xxx	Windows Vista SP2 and Windows Server 2008 SP2	SP2	GDR
  6.0.6002.22xxx	Windows Vista SP2 and Windows Server 2008 SP2	SP2	LDR

• GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
• The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Vista and Windows Server 2008

For all supported x64-based versions of Windows Vista and Windows Server 2008

For all supported IA-64-based versions of Windows Server 2008

Additional file information for Windows Vista and Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and Windows Server 2008

Additional files for all supported x64-based versions of Windows Vista and Windows Server 2008

Additional files for all supported IA-64-based versions of Windows Server 2008

Windows 7 and Windows Server 2008 R2 file information

• The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
  
  Collapse this tableExpand this table

  Version	Product	Milestone	Service branch
  6.1.7600.16xxx	Windows 7 and Windows Server 2008 R2	RTM	GDR
  6.1.7600.20xxx	Windows 7 and Windows Server 2008 R2	RTM	LDR
  6.1.7601.17xxx	Windows 7 and Windows Server 2008 R2	SP1	GDR
  6.1.7601.21xxx	Windows 7 and Windows Server 2008 R2	SP1	LDR

• GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
• The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 7 and Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

For all supported IA-64-based versions of Windows Server 2008 R2

Additional file information for Windows 7 and Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

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