Symptoms

Assume that you run an application on a computer that is running Windows 7 or Windows Server 2008 R2. When the application calls the SpAcceptLsaModeContext function by using a CredGroup object that differs from the CredGroup object in the security context, the Lsass.exe process crashes.

For example, when Microsoft Forefront Threat Management Gateway tries to validate credentials by using an SSL connection, the Lsass.exe process crashes.

Note If the Lsass.exe process crashes on the main Domain Controller, you cannot use functions that are related to user authentication on a client computer in the environment. Additionally, after the Lsass.exe process crashes, you receive Group Policy errors, authentication errors, and connection errors on the client computer.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • 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:

    Version

    Product

    Milestone

    Service branch

    6.1.760
    0.21xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • 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 for 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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7600.21331

369,360

27-Sep-2012

23:18

x86

Ksecdd.sys

6.1.7600.21331

67,464

27-Sep-2012

17:21

x86

Ksecpkg.sys

6.1.7600.21331

134,024

27-Sep-2012

17:21

x86

Lsasrv.dll

6.1.7600.21331

1,037,312

27-Sep-2012

17:06

x86

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:19

Not applicable

Lsass.exe

6.1.7600.21331

22,016

27-Sep-2012

14:46

x86

Secur32.dll

6.1.7600.21331

22,016

27-Sep-2012

17:09

x86

Sspicli.dll

6.1.7600.21331

99,840

27-Sep-2012

17:10

x86

Sspisrv.dll

6.1.7600.21331

15,360

27-Sep-2012

14:46

x86

Cng.sys

6.1.7601.22121

369,856

28-Sep-2012

05:30

x86

Ksecdd.sys

6.1.7601.22121

67,440

28-Sep-2012

05:19

x86

Ksecpkg.sys

6.1.7601.22121

136,584

28-Sep-2012

05:19

x86

Lsasrv.dll

6.1.7601.22121

1,039,360

28-Sep-2012

04:49

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Lsass.exe

6.1.7601.22121

22,016

27-Sep-2012

15:11

x86

Secur32.dll

6.1.7601.22121

22,016

28-Sep-2012

04:52

x86

Sspicli.dll

6.1.7601.22121

99,840

28-Sep-2012

04:53

x86

Sspisrv.dll

6.1.7601.22121

15,872

27-Sep-2012

15:11

x86

Ncrypt.dll

6.1.7601.22121

220,160

28-Sep-2012

04:50

x86

Schannel.dll

6.1.7600.21331

225,280

27-Sep-2012

17:09

x86

Schannel.dll

6.1.7601.22121

247,808

28-Sep-2012

04:52

x86

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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7600.21331

459,224

28-Sep-2012

00:45

x64

Ksecdd.sys

6.1.7600.21331

95,600

28-Sep-2012

00:46

x64

Ksecpkg.sys

6.1.7600.21331

152,432

28-Sep-2012

00:46

x64

Lsasrv.dll

6.1.7600.21331

1,445,376

27-Sep-2012

17:28

x64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:34

Not applicable

Lsass.exe

6.1.7600.21331

30,720

27-Sep-2012

14:59

x64

Secur32.dll

6.1.7600.21331

28,160

27-Sep-2012

17:31

x64

Sspicli.dll

6.1.7600.21331

135,680

27-Sep-2012

17:32

x64

Sspisrv.dll

6.1.7600.21331

28,160

27-Sep-2012

17:32

x64

Cng.sys

6.1.7601.22121

458,712

28-Sep-2012

05:46

x64

Ksecdd.sys

6.1.7601.22121

95,600

28-Sep-2012

05:32

x64

Ksecpkg.sys

6.1.7601.22121

154,480

28-Sep-2012

05:32

x64

Lsasrv.dll

6.1.7601.22121

1,447,424

28-Sep-2012

05:05

x64

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:50

Not applicable

Lsass.exe

6.1.7601.22121

30,720

27-Sep-2012

15:53

x64

Secur32.dll

6.1.7601.22121

28,160

28-Sep-2012

05:08

x64

Sspicli.dll

6.1.7601.22121

135,680

28-Sep-2012

05:09

x64

Sspisrv.dll

6.1.7601.22121

28,672

28-Sep-2012

05:09

x64

Ncrypt.dll

6.1.7601.22121

307,200

28-Sep-2012

05:06

x64

Schannel.dll

6.1.7600.21331

338,944

27-Sep-2012

17:31

x64

Schannel.dll

6.1.7601.22121

341,504

28-Sep-2012

05:08

x64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:19

Not applicable

Secur32.dll

6.1.7600.21331

22,016

27-Sep-2012

17:09

x86

Sspicli.dll

6.1.7600.21331

96,768

27-Sep-2012

17:11

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Secur32.dll

6.1.7601.22121

22,016

28-Sep-2012

04:52

x86

Sspicli.dll

6.1.7601.22121

96,768

28-Sep-2012

04:54

x86

Schannel.dll

6.1.7600.21331

225,280

27-Sep-2012

17:09

x86

Schannel.dll

6.1.7601.22121

247,808

28-Sep-2012

04:52

x86

Ncrypt.dll

6.1.7601.22121

220,160

28-Sep-2012

04:50

x86

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

File name

File version

File size

Date

Time

Platform

Cng.sys

6.1.7600.21331

788,536

28-Sep-2012

00:37

IA-64

Ksecdd.sys

6.1.7600.21331

179,592

27-Sep-2012

22:51

IA-64

Ksecpkg.sys

6.1.7600.21331

309,128

27-Sep-2012

22:51

IA-64

Lsasrv.dll

6.1.7600.21331

2,654,720

27-Sep-2012

16:36

IA-64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:59

Not applicable

Lsass.exe

6.1.7600.21331

55,808

27-Sep-2012

14:26

IA-64

Secur32.dll

6.1.7600.21331

48,640

27-Sep-2012

16:40

IA-64

Sspicli.dll

6.1.7600.21331

274,944

27-Sep-2012

16:41

IA-64

Sspisrv.dll

6.1.7600.21331

45,056

27-Sep-2012

16:41

IA-64

Cng.sys

6.1.7601.22121

789,048

28-Sep-2012

04:45

IA-64

Ksecdd.sys

6.1.7601.22121

179,568

28-Sep-2012

04:24

IA-64

Ksecpkg.sys

6.1.7601.22121

316,296

28-Sep-2012

04:24

IA-64

Lsasrv.dll

6.1.7601.22121

2,656,768

27-Sep-2012

17:16

IA-64

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:52

Not applicable

Lsass.exe

6.1.7601.22121

55,808

27-Sep-2012

15:05

IA-64

Secur32.dll

6.1.7601.22121

48,640

27-Sep-2012

17:19

IA-64

Sspicli.dll

6.1.7601.22121

274,944

27-Sep-2012

17:20

IA-64

Sspisrv.dll

6.1.7601.22121

45,568

27-Sep-2012

17:20

IA-64

Ncrypt.dll

6.1.7601.22121

551,424

27-Sep-2012

17:17

IA-64

Schannel.dll

6.1.7600.21331

648,704

27-Sep-2012

16:40

IA-64

Schannel.dll

6.1.7601.22121

711,680

27-Sep-2012

17:19

IA-64

Lsasrv.mof

Not applicable

13,780

22-Jul-2009

23:19

Not applicable

Secur32.dll

6.1.7600.21331

22,016

27-Sep-2012

17:09

x86

Sspicli.dll

6.1.7600.21331

96,768

27-Sep-2012

17:11

x86

Lsasrv.mof

Not applicable

13,780

12-Nov-2010

23:53

Not applicable

Secur32.dll

6.1.7601.22121

22,016

28-Sep-2012

04:52

x86

Sspicli.dll

6.1.7601.22121

96,768

28-Sep-2012

04:54

x86

Schannel.dll

6.1.7600.21331

225,280

27-Sep-2012

17:09

x86

Schannel.dll

6.1.7601.22121

247,808

28-Sep-2012

04:52

x86

Ncrypt.dll

6.1.7601.22121

220,160

28-Sep-2012

04:50

x86


Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

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