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, seeGet 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.

Method 3: Microsoft Download Center

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

How to obtain help and support for this security update

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
malicious attacker exploit
File Information

File hash information

File nameSHA1 hashSHA256 hash
Windows8.1-KB3177186-x86.msu80602984B34110886BFF51EDB1F4222FF3B1CF9BADF0C5136DCA787F6019023DD9C46F55DADA3CCB0F7F6484B8C13C3421F13A7A
Windows8.1-KB3177186-arm.msuD94A70BBFFC60BA6B81B343108989FFCD9115744020D50C6202CE8792327A986C982502CF13F3A83C707244E9FCC8E8ECFD81F9B
Windows6.1-KB3177186-ia64.msuB596DBEA5EB80EE3080DE3F2F65662025DC3C7B9DA53BBF40359B559D6F2F025E898D4D0534703AE04B1E9937A91CC1E22573551
Windows6.1-KB3177186-x86.msu960DE3A99AF2325BC43EEBA8437049672C77B69CF6D61A038EA4C091136AC06BD8CF12F7E605ACC4C36DB471D259206D935FDAC7
Windows6.1-KB3177186-x64.msu90E086893DF2AF9FBE85831705C3FD4DC514139058E0CD6C82EA2B82C80B6560283BEB2B1E76080C6B155B3D3A1DEAACB636D77C
Windows8.1-KB3177186-x64.msu2366E07F485AE12A2237EB5BDCC5D1809C85484DED648BF1FE40D5C3C7FEC8499F5288430578119A4925E04826FBF733A68579FF
Windows6.0-KB3177186-ia64.msu8343BAC77E336553023691D2185CECB7067C0D1A5D2350F64501DBFC27DDEE448AAFD5F4BDDF3C0C83249E717210CFD5A857CE08
Windows8-RT-KB3177186-x64.msuAAD2183DA056282D38E44F19F107DB4F2A3B701178748EB0C1F59D15FEA721495DB827F1F9C20D6381CE12C5774EA6ED3AFB11A4
Windows6.0-KB3177186-x86.msuD0ECEBB986CA7D75F625200180F4B44D9C0F20158531DDE49D54A19678B66285F7BA5E2770B81D1DBF587E5A80F9202A171A46AB
Windows6.0-KB3177186-x64.msu8E700FB6BF1381BBA00E9FAB535B92F0D0B55EAEF148E1F9C851B24CDBBCD5A1CC71C604662BED8EB6DA338D6B53C3539955DC64

File information

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:
    VersionProductMilestoneService branch
    6.3.960 0.16 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
    6.3.960 0.17 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
    6.3.960 0.18 xxxWindows RT 8.1, Windows 8.1, and Windows Server 2012 R2RTMGDR
  • 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 nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.3.9600.18431186,88003-Aug-201617:07x86
Srv.sys6.3.9600.18432336,89604-Aug-201614:17x86
Srv2.sys6.3.9600.18431562,17603-Aug-201617:07x86
For all supported ARM-based versions
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.3.9600.18431174,59203-Aug-201616:45Not applicable
Srv.sys6.3.9600.18432306,17604-Aug-201614:16Not applicable
Srv2.sys6.3.9600.18431521,21603-Aug-201616:45Not applicable
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.3.9600.18431243,71203-Aug-201618:05x64
Srv.sys6.3.9600.18432416,76804-Aug-201614:17x64
Srv2.sys6.3.9600.18431675,32803-Aug-201618:06x64

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 1.18xxxWindows 7 or Windows Server 2008 R2 SP1GDR
    6.1.760 1.23 xxxWindows 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 nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.1.7601.23517351,23212-Aug-201616:13IA-64
Srv.sys6.1.7601.235171,028,09612-Aug-201616:14IA-64
Srv2.sys6.1.7601.23517798,72012-Aug-201616:13IA-64
For all supported x86-based versions
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.1.7601.23517116,22412-Aug-201616:21x86
Srv.sys6.1.7601.23517310,78412-Aug-201616:21x86
Srv2.sys6.1.7601.23517313,85612-Aug-201616:21x86
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.1.7601.23517168,96012-Aug-201616:26x64
Srv.sys6.1.7601.23517464,89612-Aug-201616:26x64
Srv2.sys6.1.7601.23517405,50412-Aug-201616:26x64

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 2.19xxxWindows Vista or Windows Server 2008SP2GDR
    6.0.600 2.23xxxWindows Vista or Windows Server 2008SP2LDR
  • 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 nameFile versionFile sizeDateTimePlatform
Netevent.dll6.0.6002.1967317,92003-Aug-201615:35IA-64
Netevent.dll6.0.6002.2400017,92003-Aug-201620:57IA-64
Srvnet.sys6.0.6002.19673297,98403-Aug-201614:20IA-64
Srvnet.sys6.0.6002.24000297,98403-Aug-201620:03IA-64
Srv.sys6.0.6002.19673966,14403-Aug-201614:20IA-64
Srv.sys6.0.6002.24000968,19203-Aug-201620:03IA-64
Srv2.sys6.0.6002.19673468,48003-Aug-201614:20IA-64
Srv2.sys6.0.6002.24000474,62403-Aug-201620:03IA-64
Netevent.dll6.0.6002.1967317,92003-Aug-201615:45x86
Netevent.dll6.0.6002.2400017,92003-Aug-201621:04x86
For all supported x86-based versions
File nameFile versionFile sizeDateTimePlatform
Netevent.dll6.0.6002.1967317,92003-Aug-201615:45x86
Netevent.dll6.0.6002.2400017,92003-Aug-201621:04x86
Srvnet.sys6.0.6002.19673103,93603-Aug-201614:20x86
Srvnet.sys6.0.6002.24000103,93603-Aug-201620:04x86
Srv.sys6.0.6002.19673304,12803-Aug-201614:21x86
Srv.sys6.0.6002.24000304,64003-Aug-201620:05x86
Srv2.sys6.0.6002.19673146,43203-Aug-201614:20x86
Srv2.sys6.0.6002.24000147,96803-Aug-201620:04x86
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Netevent.dll6.0.6002.1967317,92003-Aug-201616:23x64
Netevent.dll6.0.6002.2400017,92003-Aug-201621:27x64
Srvnet.sys6.0.6002.19673147,45603-Aug-201614:40x64
Srvnet.sys6.0.6002.24000147,96803-Aug-201620:25x64
Srv.sys6.0.6002.19673451,07203-Aug-201614:41x64
Srv.sys6.0.6002.24000450,04803-Aug-201620:25x64
Srv2.sys6.0.6002.19673176,12803-Aug-201614:40x64
Srv2.sys6.0.6002.24000178,17603-Aug-201620:25x64
Netevent.dll6.0.6002.1967317,92003-Aug-201615:45x86
Netevent.dll6.0.6002.2400017,92003-Aug-201621:04x86

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 0.17xxxWindows 8, Windows RT, or Windows Server 2012RTMGDR
    6.2.920 0.21xxxWindows 8, Windows RT, or Windows Server 2012RTMLDR
  • 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 nameFile versionFile sizeDateTimePlatform
Srvnet.sys6.2.9200.21954250,88011-Aug-201619:56x64
Srv.sys6.2.9200.21954421,37611-Aug-201619:58x64
Srv2.sys6.2.9200.21954673,79211-Aug-201619:58x64
Rekvizīti

Raksta ID: 3177186. Pēdējo reizi pārskatīts: 09/13/2016 20:57:00. Pārskatījums: 2.0

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows 8.1 Enterprise, Windows 8.1 Pro, Windows 8.1, Windows RT 8.1, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2008 R2 Service Pack 1, Windows 7 Service Pack 1, Windows Server 2008 Service Pack 2, Windows Vista Service Pack 2

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