Summary

This security update resolves a denial of service vulnerability in Microsoft Windows. An attacker who successfully exploited the vulnerability could cause the system to become unresponsive. To exploit the vulnerability, an attacker must have valid credentials.

To learn more about the vulnerability, see Microsoft Security Bulletin MS15-120.

More Information

Important


  • If you manually install this security update, we recommend that you install the update on your server-based systems first and then install the update on the client-based systems. Or, install the update on the server-based and client-based systems at the same time.


    Depending on your IPsec implementation, deploying this update to client systems only may result in a loss of network connectivity.

  • All future security and nonsecurity updates for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your Windows RT 8.1-based, Windows 8.1-based, or Windows Server 2012 R2-based computer so that you receive future updates.

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see
Get security updates automatically.

Note For Windows RT and Windows RT 8.1, this update is available through Windows Update only.

You can obtain the stand-alone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

Click the download link in Microsoft Security Bulletin MS15-120 that corresponds to the version of Windows that you are running.

More Information

To Windows 8 and Windows 8.1 (all editions) Reference Table

The following table contains the security update information for this software.

Security update file name

For all supported 32-bit editions of Windows 8:
Windows8-RT-KB3102939-x86.msu


For all supported x64-based editions of Windows 8:
Windows8-RT-KB3102939-x64.msu


For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3102939-x86.msu


For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3102939-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

In some cases, this update does not require a system restart. If the required files are being used, this update will require a system restart. If this behavior occurs, you receive a message that advises you to restart your system.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See the file information section.

Registry key verification

Note A registry key does not exist to validate the presence of this update.

Windows Server 2012 and Windows Server 2012 R2 (all editions)Reference Table

The following table contains the security update information for this software.

Security update file name

For all supported editions of Windows Server 2012:
Windows8-RT-KB3102939-x64.msu


For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3102939-x64.msu

Installation switches

See Microsoft Knowledge Base Article 934307

Restart requirement

In some cases, this update does not require a system restart. If the required files are being used, this update will require a system restart. If this behavior occurs, you receive a message that advises you to restart your system.

Removal information

To uninstall an update that is installed by WUSA, use the /Uninstall setup switch. Or, click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See the file information section.

Registry key verification

Note A registry key does not exist to validate the presence of this update.

Windows RT and Windows RT 8.1 (all editions)Reference Table

The following table contains the security update information for this software.

Deployment

These updates are available through Windows Update only.

Restart requirement

Yes, you must restart your system after you apply this security update.

Removal information

Click Control Panel, click System and Security, and then click Windows Update. Under See also, click Installed updates, and then select from the list of updates.

File information

See the file information section.


Package Name

Package Hash SHA 1

Package Hash SHA 2

Windows8-RT-KB3102939-x86.msu

E3BA8513D11160B99DE7874DC82CC87E10D285AB

E6CEE790FB5410D382B9A7987532EDD8F90761EA7D753CF4FE5A9DC623C53488

Windows8-RT-KB3102939-x64.msu

F56D7AD3E6F87F9B0DC35BC5723E42438E3BA187

CF0F22768B869A74A781A0FDA075D1E140ADC1196F22B9BAB878153B01B2F297

Windows8.1-KB3102939-x86.msu

30C8E0BF6CD91A669C9BAA7334D490027F00AA95

6366AA9E2C58A366D1D5D42BA86175C9C22B15D60CD42EFE35D9FEAF1280EB73

Windows8.1-KB3102939-x64.msu

194894AEA47349E55B195ACEF50B56930D4540B2

F2EAB3C1FF3444E6AA961D391E1D0F64075DFE5D46C4ECF484A641D9B3AB2E84

Windows8-RT-KB3102939-arm.msu

B90A261CE4CFA8277F6F77D8065AD68AE4D17F19

184FC80EE6C844E95D3CD9A7A052A0EC805289AF9EC05AACC0116566FE008A6A

Windows8.1-KB3102939-arm.msu

7CA826FACB7440A1B487EAC3EEA7319BDC5D7E52

5865F199E61AFE730902164AF520321CE03707A3F755831783BCE704A88CB4AA

Windows8-RT-KB3102939-x64.msu

F56D7AD3E6F87F9B0DC35BC5723E42438E3BA187

CF0F22768B869A74A781A0FDA075D1E140ADC1196F22B9BAB878153B01B2F297

Windows8-RT-KB3102939-x64.msu

F56D7AD3E6F87F9B0DC35BC5723E42438E3BA187

CF0F22768B869A74A781A0FDA075D1E140ADC1196F22B9BAB878153B01B2F297

Windows8.1-KB3102939-x64.msu

194894AEA47349E55B195ACEF50B56930D4540B2

F2EAB3C1FF3444E6AA961D391E1D0F64075DFE5D46C4ECF484A641D9B3AB2E84

Windows8.1-KB3102939-x64.msu

194894AEA47349E55B195ACEF50B56930D4540B2

F2EAB3C1FF3444E6AA961D391E1D0F64075DFE5D46C4ECF484A641D9B3AB2E84


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


Windows 8 and Windows Server 2012 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:

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.17 xxx

    Windows 8, Windows RT, or Windows Server 2012

    RTM

    GDR

    6.2.920 0.21 xxx

    Windows 8, Windows RT, or Windows Server 2012

    RTM

    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.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.2.9200.17539

473,600

11-Oct-2015

06:52

x86

Fwpuclnt.dll

6.2.9200.16634

245,248

10-Jun-2013

19:10

x86

Ikeext.dll

6.2.9200.17539

684,032

11-Oct-2015

06:52

x86

Nshwfp.dll

6.2.9200.17218

702,464

18-Dec-2014

06:20

x86

Bfe.dll

6.2.9200.21656

473,600

12-Oct-2015

15:00

x86

Fwpuclnt.dll

6.2.9200.21656

245,248

12-Oct-2015

15:00

x86

Ikeext.dll

6.2.9200.21656

684,032

12-Oct-2015

15:00

x86

Nshwfp.dll

6.2.9200.21317

702,464

18-Dec-2014

00:38

x86

Bfe.dll

6.2.9200.17539

473,600

11-Oct-2015

06:52

x86

Fwpuclnt.dll

6.2.9200.16634

245,248

10-Jun-2013

19:10

x86

Ikeext.dll

6.2.9200.17539

684,032

11-Oct-2015

06:52

x86

Networksecurity-ppdlic.xrm-ms

Not Applicable

2,920

11-Oct-2015

07:24

Not Applicable

Nshwfp.dll

6.2.9200.17218

702,464

18-Dec-2014

06:20

x86

Wfplwfs.sys

6.2.9200.17218

38,720

18-Dec-2014

07:02

x86

Bfe.dll

6.2.9200.21656

473,600

12-Oct-2015

15:00

x86

Fwpuclnt.dll

6.2.9200.21656

245,248

12-Oct-2015

15:00

x86

Ikeext.dll

6.2.9200.21656

684,032

12-Oct-2015

15:00

x86

Networksecurity-ppdlic.xrm-ms

Not Applicable

2,920

12-Oct-2015

15:21

Not Applicable

Nshwfp.dll

6.2.9200.21317

702,464

18-Dec-2014

00:38

x86

Wfplwfs.sys

6.2.9200.21317

38,720

18-Dec-2014

01:29

x86

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

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.2.9200.17539

723,968

11-Oct-2015

06:45

x64

Fwpuclnt.dll

6.2.9200.16634

381,952

10-Jun-2013

19:15

x64

Ikeext.dll

6.2.9200.17539

1,160,192

11-Oct-2015

06:45

x64

Nshwfp.dll

6.2.9200.17218

889,344

18-Dec-2014

06:52

x64

Bfe.dll

6.2.9200.21656

718,848

12-Oct-2015

14:33

x64

Fwpuclnt.dll

6.2.9200.21656

378,880

12-Oct-2015

14:33

x64

Ikeext.dll

6.2.9200.21656

1,074,688

12-Oct-2015

14:33

x64

Nshwfp.dll

6.2.9200.21317

889,344

18-Dec-2014

00:46

x64

Bfe.dll

6.2.9200.17539

723,968

11-Oct-2015

06:45

x64

Fwpuclnt.dll

6.2.9200.16634

381,952

10-Jun-2013

19:15

x64

Ikeext.dll

6.2.9200.17539

1,160,192

11-Oct-2015

06:45

x64

Networksecurity-ppdlic.xrm-ms

Not Applicable

2,920

11-Oct-2015

08:33

Not Applicable

Nshwfp.dll

6.2.9200.17218

889,344

18-Dec-2014

06:52

x64

Wfplwfs.sys

6.2.9200.17218

96,576

18-Dec-2014

08:51

x64

Bfe.dll

6.2.9200.21656

718,848

12-Oct-2015

14:33

x64

Fwpuclnt.dll

6.2.9200.21656

378,880

12-Oct-2015

14:33

x64

Ikeext.dll

6.2.9200.21656

1,074,688

12-Oct-2015

14:33

x64

Networksecurity-ppdlic.xrm-ms

Not Applicable

2,920

12-Oct-2015

14:44

Not Applicable

Nshwfp.dll

6.2.9200.21317

889,344

18-Dec-2014

00:46

x64

Wfplwfs.sys

6.2.9200.21317

96,576

18-Dec-2014

02:58

x64

Fwpuclnt.dll

6.2.9200.16634

245,248

10-Jun-2013

19:10

x86

Nshwfp.dll

6.2.9200.17218

702,464

18-Dec-2014

06:20

x86

Fwpuclnt.dll

6.2.9200.21656

245,248

12-Oct-2015

15:00

x86

Nshwfp.dll

6.2.9200.21317

702,464

18-Dec-2014

00:38

x86

Windows 8.1 and Windows Server 2012 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:

    Version

    Product

    Milestone

    Service branch

    6.3.920 0.17 xxx

    Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

    RTM

    GDR

  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x86-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.3.9600.18009

570,368

10-Aug-2015

17:01

x86

Fwpuclnt.dll

6.3.9600.18009

272,384

10-Aug-2015

16:56

x86

Ikeext.dll

6.3.9600.18086

734,208

08-Oct-2015

15:45

x86

Nshwfp.dll

6.3.9600.18009

561,664

10-Aug-2015

16:46

x86

Bfe.dll

6.3.9600.18009

570,368

10-Aug-2015

17:01

x86

Fwpuclnt.dll

6.3.9600.18009

272,384

10-Aug-2015

16:56

x86

Ikeext.dll

6.3.9600.18086

734,208

08-Oct-2015

15:45

x86

Networksecurity-ppdlic.xrm-ms

Not Applicable

3,059

08-Oct-2015

17:55

Not Applicable

Nshwfp.dll

6.3.9600.18009

561,664

10-Aug-2015

16:46

x86

Wfplwfs.sys

6.3.9600.17485

69,440

10-Nov-2014

17:47

x86

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

File name

File version

File size

Date

Time

Platform

Bfe.dll

6.3.9600.18009

845,312

10-Aug-2015

18:15

x64

Fwpuclnt.dll

6.3.9600.18009

422,400

10-Aug-2015

18:06

x64

Ikeext.dll

6.3.9600.18086

1,083,904

08-Oct-2015

16:08

x64

Nshwfp.dll

6.3.9600.18009

713,216

10-Aug-2015

17:49

x64

Bfe.dll

6.3.9600.18009

845,312

10-Aug-2015

18:15

x64

Fwpuclnt.dll

6.3.9600.18009

422,400

10-Aug-2015

18:06

x64

Ikeext.dll

6.3.9600.18086

1,083,904

08-Oct-2015

16:08

x64

Networksecurity-ppdlic.xrm-ms

Not Applicable

3,059

08-Oct-2015

18:46

Not Applicable

Nshwfp.dll

6.3.9600.18009

713,216

10-Aug-2015

17:49

x64

Wfplwfs.sys

6.3.9600.17485

136,512

10-Nov-2014

18:06

x64

Fwpuclnt.dll

6.3.9600.18009

272,384

10-Aug-2015

16:56

x86

Nshwfp.dll

6.3.9600.18009

561,664

10-Aug-2015

16:46

x86


Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

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