Symptoms

Consider the following scenario:

  • You install the Active Directory Federation Services (AD FS) 2.0 on a computer that is running Windows Server 2008 R2 or Windows Server 2008 Service Pack 2 (SP2).

  • Some clients send many HTTP SOAP requests for the metadata of the AD FS 2.0 service to the "/adfs/services/trust/mex" SOAP Metadata Exchange endpoint for AD FS 2.0.

In this scenario, memory is leaked until garbage collection occurs if the HTTP SOAP requests fail. Additionally, the Metadata Exchange endpoint may stop responding, and then the client receives an instance of the "500" error code from the AD FS 2.0 server. 

Note After a garbage collection occurs, the Metadata Exchange endpoint may stop responding again if client errors build up.

Cause

This issue occurs because AD FS 2.0 leaks memory when a HTTP SAOP request to the "/adfs/services/trust/mex" Metadata Exchange endpoint fails. Therefore, the endpoint may be unable to process any new requests after a while.

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 Web site:

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 Windows Server 2008 R2 or Windows Server 2008 Service Pack 2 (SP2). Additionally, you must have Active Directory Federation Services (AD FS) 2.0 installed.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English (United States) 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 Server 2008 R2 or Windows Server 2008 file information notes

Important

  • 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 Server 2008 R2 and for Windows Server 2008" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. 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 Server 2008

File name

File version

File size

Date

Time

Hashes

Platform

Microsoft.identityserver.service.dll

6.1.7600.20737

638,976

30-Jun-2010

11:21

MD5: 6E24CF1DE6A53CD92C44B6C1F984D081
SHA1: 085A88D707576DA39D9301208C6A04C3A2A569A8

x86

Microsoft.identityserver.service.mof

Not applicable

4,606

26-May-2010

12:22

Not applicable

Not applicable

Uninstallwmiprovider.mof

Not applicable

1,012

26-May-2010

12:22

Not applicable

Not applicable

For all supported x64-based versions of Windows Server 2008

File name

File version

File size

Date

Time

Hashes

Platform

Microsoft.identityserver.service.dll

6.1.7600.20737

638,976

30-Jun-2010

11:24

MD5: 6E24CF1DE6A53CD92C44B6C1F984D081
SHA1: 085A88D707576DA39D9301208C6A04C3A2A569A8

x64

Microsoft.identityserver.service.mof

Not applicable

4,606

26-May-2010

12:23

Not applicable

Not applicable

Uninstallwmiprovider.mof

Not applicable

1,012

26-May-2010

12:23

Not applicable

Not applicable

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

File name

File version

File size

Date

Time

Hashes

Platform

Microsoft.identityserver.service.dll

6.1.7600.20737

638,976

18-Jun-2010

09:54

MD5: 6E24CF1DE6A53CD92C44B6C1F984D081
SHA1: 085A88D707576DA39D9301208C6A04C3A2A569A8

x64

Microsoft.identityserver.service.mof

Not applicable

4,606

23-May-2010

01:26

Not applicable

Not applicable

Uninstallwmiprovider.mof

Not applicable

1,012

23-May-2010

01:26

Not applicable

Not applicable

Workaround

Workaround for Windows Server 2008 R2 and for Windows Server 2008

To work around this issue, restart the service for Active Directory Federation Services (AD FS) 2.0.

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

Additional file information for Windows Server 2008 R2 and for Windows Server 2008

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

File name

Msil_microsoft.identityserver.service_31bf3856ad364e35_7.0.6002.22435_none_bc20eb8285ca8a87.manifest

File version

Not applicable

File size

5,302

Date (UTC)

30-Jun-2010

Time (UTC)

16:44

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_1_for_kb2254265~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not applicable

File size

1,987

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_for_kb2254265_server_1~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not applicable

File size

1,625

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_for_kb2254265_server~31bf3856ad364e35~x86~~6.0.1.0.mum

File version

Not applicable

File size

1,436

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

X86_703669a96ca3a3a214269f311bb1fbc8_31bf3856ad364e35_7.0.6002.22435_none_b5d2b97f5e49f3e8.manifest

File version

Not applicable

File size

703

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

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

File name

Amd64_703669a96ca3a3a214269f311bb1fbc8_31bf3856ad364e35_7.0.6002.22435_none_11f1550316a7651e.manifest

File version

Not applicable

File size

705

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Msil_microsoft.identityserver.service_31bf3856ad364e35_7.0.6002.22435_none_bc20eb8285ca8a87.manifest

File version

Not applicable

File size

5,304

Date (UTC)

30-Jun-2010

Time (UTC)

16:56

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_1_for_kb2254265~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not applicable

File size

1,997

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_for_kb2254265_server_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not applicable

File size

1,635

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_for_kb2254265_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

File version

Not applicable

File size

1,444

Date (UTC)

30-Jun-2010

Time (UTC)

21:52

SHA-1 hash

Not applicable

MD5 hash

Not applicable

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

File name

Amd64_dd3ee929101affdbf79caae5c47da439_31bf3856ad364e35_7.1.7600.20737_none_3963e9aef2fb4aa9.manifest

File version

Not applicable

File size

705

Date (UTC)

18-Jun-2010

Time (UTC)

15:28

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Msil_microsoft.identityserver.service_31bf3856ad364e35_7.1.7600.20737_none_ba64488de9b9a7d2.manifest

File version

Not applicable

File size

5,018

Date (UTC)

18-Jun-2010

Time (UTC)

10:39

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_1_for_kb2254265~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,035

Date (UTC)

18-Jun-2010

Time (UTC)

15:28

SHA-1 hash

Not applicable

MD5 hash

Not applicable

File name

Package_for_kb2254265_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,668

Date (UTC)

18-Jun-2010

Time (UTC)

15:28

SHA-1 hash

Not applicable

MD5 hash

Not applicable

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