MS16-114: Description of the security update for Windows SMBv1 Server: September 13, 2016

Summary

This security update resolves a vulnerability in Microsoft Windows. On Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2 operating systems, the vulnerability could allow remote code execution if an authenticated attacker sends specially crafted packets to an affected Microsoft Server Message Block 1.0 (SMBv1) Server. The vulnerability does not impact other SMB Server versions. Although later operating systems are affected, the potential impact is denial of service.


To learn more about the vulnerability, see Microsoft Security Bulletin MS16-114.

More Information

Nonsecurity fixes that are included in this security update

  • When you try to access a domain DFS namespace (such as \\contoso.com\SYSVOL) from a computer that is configured to require mutual authentication (by using the UNC Hardened Access feature), a 0xE3 Stop error may occur on the selected domain controller if the selected domain controller is running Windows Server 2008 and has security update 3161561 installed, and the SmbServerNameHardeningLevel registry entry is configured to a nonzero value on the server.

  • You may receive a Stop 07xE error in SMB when you run many copy operations on the server-side.

Important

  • All future security and non-security 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 8.1, this update is available through Windows Update only.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

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 MS16-114 that corresponds to the version of Windows that you are running.

More Information

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

File Information

File name

SHA1 hash

SHA256 hash

Windows8.1-KB3177186-x86.msu

80602984B34110886BFF51EDB1F4222FF3B1CF9B

ADF0C5136DCA787F6019023DD9C46F55DADA3CCB0F7F6484B8C13C3421F13A7A

Windows8.1-KB3177186-arm.msu

D94A70BBFFC60BA6B81B343108989FFCD9115744

020D50C6202CE8792327A986C982502CF13F3A83C707244E9FCC8E8ECFD81F9B

Windows6.1-KB3177186-ia64.msu

B596DBEA5EB80EE3080DE3F2F65662025DC3C7B9

DA53BBF40359B559D6F2F025E898D4D0534703AE04B1E9937A91CC1E22573551

Windows6.1-KB3177186-x86.msu

960DE3A99AF2325BC43EEBA8437049672C77B69C

F6D61A038EA4C091136AC06BD8CF12F7E605ACC4C36DB471D259206D935FDAC7

Windows6.1-KB3177186-x64.msu

90E086893DF2AF9FBE85831705C3FD4DC5141390

58E0CD6C82EA2B82C80B6560283BEB2B1E76080C6B155B3D3A1DEAACB636D77C

Windows8.1-KB3177186-x64.msu

2366E07F485AE12A2237EB5BDCC5D1809C85484D

ED648BF1FE40D5C3C7FEC8499F5288430578119A4925E04826FBF733A68579FF

Windows6.0-KB3177186-ia64.msu

8343BAC77E336553023691D2185CECB7067C0D1A

5D2350F64501DBFC27DDEE448AAFD5F4BDDF3C0C83249E717210CFD5A857CE08

Windows8-RT-KB3177186-x64.msu

AAD2183DA056282D38E44F19F107DB4F2A3B7011

78748EB0C1F59D15FEA721495DB827F1F9C20D6381CE12C5774EA6ED3AFB11A4

Windows6.0-KB3177186-x86.msu

D0ECEBB986CA7D75F625200180F4B44D9C0F2015

8531DDE49D54A19678B66285F7BA5E2770B81D1DBF587E5A80F9202A171A46AB

Windows6.0-KB3177186-x64.msu

8E700FB6BF1381BBA00E9FAB535B92F0D0B55EAE

F148E1F9C851B24CDBBCD5A1CC71C604662BED8EB6DA338D6B53C3539955DC64


The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

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

Notes

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

    RTM

    GDR

    6.3.960 0.17 xxx

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

    RTM

    GDR

    6.3.960 0.18 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. LDR service branches contain hotfixes in addition to widely released fixes.

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

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.3.9600.18431

186,880

03-Aug-2016

17:07

x86

Srv.sys

6.3.9600.18432

336,896

04-Aug-2016

14:17

x86

Srv2.sys

6.3.9600.18431

562,176

03-Aug-2016

17:07

x86

For all supported ARM-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.3.9600.18431

174,592

03-Aug-2016

16:45

Not applicable

Srv.sys

6.3.9600.18432

306,176

04-Aug-2016

14:16

Not applicable

Srv2.sys

6.3.9600.18431

521,216

03-Aug-2016

16:45

Not applicable

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.3.9600.18431

243,712

03-Aug-2016

18:05

x64

Srv.sys

6.3.9600.18432

416,768

04-Aug-2016

14:17

x64

Srv2.sys

6.3.9600.18431

675,328

03-Aug-2016

18:06

x64

Windows 7 and Windows Server 2008 R2 file information

Notes

  • 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 1.18xxx

    Windows 7 or Windows Server 2008 R2

    SP1

    GDR

    6.1.760 1.23 xxx

    Windows 7 or 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 MUM files (.mum) that are installed are not listed.

For all supported ia64-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.1.7601.23517

351,232

12-Aug-2016

16:13

IA-64

Srv.sys

6.1.7601.23517

1,028,096

12-Aug-2016

16:14

IA-64

Srv2.sys

6.1.7601.23517

798,720

12-Aug-2016

16:13

IA-64

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.1.7601.23517

116,224

12-Aug-2016

16:21

x86

Srv.sys

6.1.7601.23517

310,784

12-Aug-2016

16:21

x86

Srv2.sys

6.1.7601.23517

313,856

12-Aug-2016

16:21

x86

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.1.7601.23517

168,960

12-Aug-2016

16:26

x64

Srv.sys

6.1.7601.23517

464,896

12-Aug-2016

16:26

x64

Srv2.sys

6.1.7601.23517

405,504

12-Aug-2016

16:26

x64

Windows Vista and Windows Server 2008 file information

Notes

  • 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

    6.0.600 2.19xxx

    Windows Vista or Windows Server 2008

    SP2

    GDR

    6.0.600 2.23xxx

    Windows Vista or Windows Server 2008

    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 MUM files (.mum) that are installed are not listed.

For all supported ia64-based versions

File name

File version

File size

Date

Time

Platform

Netevent.dll

6.0.6002.19673

17,920

03-Aug-2016

15:35

IA-64

Netevent.dll

6.0.6002.24000

17,920

03-Aug-2016

20:57

IA-64

Srvnet.sys

6.0.6002.19673

297,984

03-Aug-2016

14:20

IA-64

Srvnet.sys

6.0.6002.24000

297,984

03-Aug-2016

20:03

IA-64

Srv.sys

6.0.6002.19673

966,144

03-Aug-2016

14:20

IA-64

Srv.sys

6.0.6002.24000

968,192

03-Aug-2016

20:03

IA-64

Srv2.sys

6.0.6002.19673

468,480

03-Aug-2016

14:20

IA-64

Srv2.sys

6.0.6002.24000

474,624

03-Aug-2016

20:03

IA-64

Netevent.dll

6.0.6002.19673

17,920

03-Aug-2016

15:45

x86

Netevent.dll

6.0.6002.24000

17,920

03-Aug-2016

21:04

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

Netevent.dll

6.0.6002.19673

17,920

03-Aug-2016

15:45

x86

Netevent.dll

6.0.6002.24000

17,920

03-Aug-2016

21:04

x86

Srvnet.sys

6.0.6002.19673

103,936

03-Aug-2016

14:20

x86

Srvnet.sys

6.0.6002.24000

103,936

03-Aug-2016

20:04

x86

Srv.sys

6.0.6002.19673

304,128

03-Aug-2016

14:21

x86

Srv.sys

6.0.6002.24000

304,640

03-Aug-2016

20:05

x86

Srv2.sys

6.0.6002.19673

146,432

03-Aug-2016

14:20

x86

Srv2.sys

6.0.6002.24000

147,968

03-Aug-2016

20:04

x86

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Netevent.dll

6.0.6002.19673

17,920

03-Aug-2016

16:23

x64

Netevent.dll

6.0.6002.24000

17,920

03-Aug-2016

21:27

x64

Srvnet.sys

6.0.6002.19673

147,456

03-Aug-2016

14:40

x64

Srvnet.sys

6.0.6002.24000

147,968

03-Aug-2016

20:25

x64

Srv.sys

6.0.6002.19673

451,072

03-Aug-2016

14:41

x64

Srv.sys

6.0.6002.24000

450,048

03-Aug-2016

20:25

x64

Srv2.sys

6.0.6002.19673

176,128

03-Aug-2016

14:40

x64

Srv2.sys

6.0.6002.24000

178,176

03-Aug-2016

20:25

x64

Netevent.dll

6.0.6002.19673

17,920

03-Aug-2016

15:45

x86

Netevent.dll

6.0.6002.24000

17,920

03-Aug-2016

21:04

x86

Windows Server 2012 file information

Notes

  • 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 0.17xxx

    Windows 8, Windows RT, or Windows Server 2012

    RTM

    GDR

    6.2.920 0.21xxx

    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.

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

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Srvnet.sys

6.2.9200.21954

250,880

11-Aug-2016

19:56

x64

Srv.sys

6.2.9200.21954

421,376

11-Aug-2016

19:58

x64

Srv2.sys

6.2.9200.21954

673,792

11-Aug-2016

19:58

x64


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