Computer leaks nonpaged pool memory when IPSEC traffic is configured to use AuthIP without encryption in Windows

Symptoms

Assume that a Windows-based computer is configured by using a specific IP Security (IPsec) rule (AuthNoEncap - AuthIP with NULL Encryption). When the computer receives User Datagram Protocol (UDP) traffic, a nonpaged pool leak occurs. If there is a large volume of traffic, the computer may become unresponsive.

For example, you may encounter this issue in the following scenario:

  • You configure the computers in a domain to use Authenticated IP (AuthIP) only for IPsec and without encryption.

  • In the domain, a computer sends a large volume of UDP traffic to a remote computer.

In this scenario, nonpaged pool memory usage increases on the remote computer. High UDP network traffic can completely exhaust the nonpaged pool memory. This causes the remote computer to become unresponsive until it is restarted.

Note Windows-based computers that host the DNS Server role are an example of a workload susceptible to this memory leak, because they service UDP-formatted DNS queries from a large collection of unique clients. However, the issue can apply to any remote computer that receives sufficient UDP traffic.

Resolution

To resolve this problem, install the hotfix that is described in this article.

Note To resolve this problem in Windows 8.1 and Windows Server 2012 R2, install update rollup 2928680.

Hotfix information

A supported hotfix is available from Microsoft Support. 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, go to 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 Service Pack 1 (SP1)

  • Windows Server 2008 R2 Service Pack 1 (SP1)

  • Windows 8

  • Windows Server 2012

  • Windows 8.1

  • Windows Server 2012 R2


Learn how to obtain Service Pack 1 for Windows 7 and Windows Server 2008 R2.

Restart requirement

A restart of the computer is required after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

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 7 and Windows Server 2008 R2 file information and 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, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    1.
    22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important 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 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 7

File name

File version

File size

Date

Time

Platform

Netio.sys

6.1.7601.22590

240,576

05-Feb-2014

02:06

x86

Fwpkclnt.sys

6.1.7601.22590

187,840

05-Feb-2014

02:06

x86

Tcpip.sys

6.1.7601.22590

1,309,632

05-Feb-2014

02:07

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

Netio.sys

6.1.7601.22590

376,768

05-Feb-2014

02:45

x64

Fwpkclnt.sys

6.1.7601.22590

288,192

05-Feb-2014

02:45

x64

Tcpip.sys

6.1.7601.22590

1,897,408

05-Feb-2014

02:45

x64

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

File name

File version

File size

Date

Time

Platform

Netio.sys

6.1.7601.22590

711,104

05-Feb-2014

01:50

IA-64

Fwpkclnt.sys

6.1.7601.22590

482,752

05-Feb-2014

01:50

IA-64

Tcpip.sys

6.1.7601.22590

3,806,656

05-Feb-2014

01:50

IA-64

Windows 8 and Windows Server 2012 file information and notes

Important Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" 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

    6.2.920 0.16 xxx

    Windows 8 and Windows Server 2012

    RTM

    GDR

    6.2.920 0.20 xxx

    Windows 8 and Windows Server 2012

    RTM

    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 8 and Windows Server 2012" 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 8

File name

File version

File size

Date

Time

Platform

Fwpkclnt.sys

6.2.9200.16384

271,088

26-Jul-2012

03:30

x86

Tcpip.sys

6.2.9200.20927

1,815,384

27-Jan-2014

01:24

x86

For all supported x64-based versions of Windows 8 and of Windows Server 2012

File name

File version

File size

Date

Time

Platform

Fwpkclnt.sys

6.2.9200.16384

411,888

26-Jul-2012

04:43

x64

Tcpip.sys

6.2.9200.20927

2,228,568

27-Jan-2014

05:37

x64

Windows 8.1 and Windows Server 2012 R2 file information and notes

Important Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1" 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

    6.3.960 0.16 xxx

    Windows 8.1 and Windows Server 2012 R2

    RTM

    GDR

  • 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 8.1 and Windows Server 2012 R2" 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 8.1

File name

File version

File size

Date

Time

Platform

Tcpip.sys

6.3.9600.16521

1,883,480

29-Jan-2014

07:43

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Tcpip.sys

6.3.9600.16521

2,543,960

29-Jan-2014

08:47

x64

For all supported ARM-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Tcpip.sys

6.3.9600.16521

1,752,936

29-Jan-2014

06:38

Not Applicable


Additional file information for Windows 7 and Windows Server 2008 R2

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

File name

Package_1_for_kb2918550~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

2,051

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

2,034

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

2,036

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,459

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_for_kb2918550_sp1~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not Applicable

File size

1,918

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

X86_5b6d91091861639ca493e61eabd54bae_31bf3856ad364e35_6.1.7601.22590_none_5d70099ec1db6f29.manifest

File version

Not Applicable

File size

1,054

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

X86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22590_none_58d1da562cf1d6da.manifest

File version

Not Applicable

File size

2,540

Date (UTC)

05-Feb-2014

Time (UTC)

02:30

Platform

Not Applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22590_none_b5547fd2de0a9071.manifest

File version

Not Applicable

File size

3,834

Date (UTC)

05-Feb-2014

Time (UTC)

02:31

Platform

Not Applicable

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

File name

Amd64_2f883857932a48cb389ed2630654528e_31bf3856ad364e35_6.1.7601.22590_none_f3add4eec3af4188.manifest

File version

Not Applicable

File size

712

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Amd64_42152651f977fb8d9febc49e7efb6968_31bf3856ad364e35_6.1.7601.22590_none_ad43eb67d8666dcd.manifest

File version

Not Applicable

File size

1,060

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Amd64_8055381271000010cb6c8a92bdd78daa_31bf3856ad364e35_6.1.7601.22590_none_09a7e542d9dd90dc.manifest

File version

Not Applicable

File size

1,414

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Amd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22590_none_b4f075d9e54f4810.manifest

File version

Not Applicable

File size

2,542

Date (UTC)

05-Feb-2014

Time (UTC)

03:08

Platform

Not Applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22590_none_11731b56966801a7.manifest

File version

Not Applicable

File size

3,838

Date (UTC)

05-Feb-2014

Time (UTC)

03:09

Platform

Not Applicable

File name

Package_1_for_kb2918550~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,063

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,246

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,246

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_4_for_kb2918550~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,276

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

1,467

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_for_kb2918550_sp1~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not Applicable

File size

2,830

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22590_none_bf45202c19b00a0b.manifest

File version

Not Applicable

File size

1,166

Date (UTC)

05-Feb-2014

Time (UTC)

02:16

Platform

Not Applicable

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

File name

Ia64_015c97f05cb54cb01db215bdd3afba24_31bf3856ad364e35_6.1.7601.22590_none_b590b0a49e2713c7.manifest

File version

Not Applicable

File size

1,411

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Ia64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22590_none_58d37e4c2cefdfd6.manifest

File version

Not Applicable

File size

2,541

Date (UTC)

05-Feb-2014

Time (UTC)

02:18

Platform

Not Applicable

File name

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22590_none_b55623c8de08996d.manifest

File version

Not Applicable

File size

3,836

Date (UTC)

05-Feb-2014

Time (UTC)

02:20

Platform

Not Applicable

File name

Package_1_for_kb2918550~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

2,268

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Package_for_kb2918550_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not Applicable

File size

1,446

Date (UTC)

05-Feb-2014

Time (UTC)

06:35

Platform

Not Applicable

File name

Wow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22590_none_bf45202c19b00a0b.manifest

File version

Not Applicable

File size

1,166

Date (UTC)

05-Feb-2014

Time (UTC)

02:16

Platform

Not Applicable

Additional file information for Windows 8 and Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File name

Package_1_for_kb2918550~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~x86~~6.2.1.0.mum

File version

Not Applicable

File size

2,023

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

File name

X86_d63a8f73334a1c9a0494714e4c00a328_31bf3856ad364e35_6.2.9200.20927_none_b9b306fd61a59624.manifest

File version

Not Applicable

File size

702

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.2.9200.20927_none_b096a4e250b73ba3.manifest

File version

Not Applicable

File size

3,883

Date (UTC)

27-Jan-2014

Time (UTC)

13:21

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8 and Windows Server 2012

File name

Amd64_23621aa9d7d4ebb0acc9c320cc42c577_31bf3856ad364e35_6.2.9200.20927_none_bc2d45a9a14b4323.manifest

File version

Not Applicable

File size

706

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.2.9200.20927_none_0cb540660914acd9.manifest

File version

Not Applicable

File size

3,887

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

File name

Package_1_for_kb2918550~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,847

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,847

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

1,847

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~amd64~~6.2.1.0.mum

File version

Not Applicable

File size

2,035

Date (UTC)

27-Jan-2014

Time (UTC)

13:22

Platform

Not Applicable

Additional file information for Windows 8.1 and Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File name

Package_1_for_kb2918550~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

2,057

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~x86~~6.3.1.0.mum

File version

Not Applicable

File size

2,243

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

File name

X86_7256edac09781f8a48bd141238d9e5cb_31bf3856ad364e35_6.3.9600.16521_none_b5fc2f3e785ea440.manifest

File version

Not Applicable

File size

702

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.3.9600.16521_none_47fbb94f81d1dcd7.manifest

File version

Not Applicable

File size

3,883

Date (UTC)

29-Jan-2014

Time (UTC)

16:16

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File name

Amd64_4d6aae1b542e64bd09168177074ebd50_31bf3856ad364e35_6.3.9600.16521_none_229a4a7207afb47a.manifest

File version

Not Applicable

File size

706

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.3.9600.16521_none_a41a54d33a2f4e0d.manifest

File version

Not Applicable

File size

3,887

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

File name

Package_1_for_kb2918550~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,847

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,291

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

1,847

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~amd64~~6.3.1.0.mum

File version

Not Applicable

File size

2,479

Date (UTC)

29-Jan-2014

Time (UTC)

16:14

Platform

Not Applicable

Additional files for all supported ARM-based versions of Windows 8.1

File name

Arm_c9af02bbe3d49dc391e6ef9125b1c2f1_31bf3856ad364e35_6.3.9600.16521_none_9e2ec31409e76c0e.manifest

File version

Not Applicable

File size

702

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable

File name

Arm_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.3.9600.16521_none_47fe2ba781cefb9d.manifest

File version

Not Applicable

File size

3,883

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable

File name

Package_1_for_kb2918550~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable

File name

Package_2_for_kb2918550~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

2,057

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable

File name

Package_3_for_kb2918550~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

1,837

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable

File name

Package_for_kb2918550_rtm~31bf3856ad364e35~arm~~6.3.1.0.mum

File version

Not Applicable

File size

2,243

Date (UTC)

29-Jan-2014

Time (UTC)

16:17

Platform

Not Applicable


Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.

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