Description of the security update for Schannel: May 10, 2016

Applies To
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

Summary

Microsoft has released a Microsoft security advisory about this issue for IT professionals. The security advisory contains additional security-related information. To learn more about the vulnerability, see
https:⁠//technet.microsoft.com/security/advisory/3155527

More Information

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 Download Center

The following files are available for download from the Microsoft Download Center.

For all supported x64-based versions of Windows Server 2012 Download Download the package now.

For all supported x86-based versions of Windows 8.1 Download Download the package now.

For all supported x64-based versions of Windows 8.1 Download Download the package now.

For all supported x64-based versions of Windows Server 2012 R2 Download Download the package now.

Release Date: May 10, 2016

For more information about how to download Microsoft support files, click the following article number to go to the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

Virus-scan claim

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

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

File Information

File hash information
File name SHA1 hash SHA256 hash
Windows8.1-KB3151058-x86.msu 1560AC25067CC01063B3CA849908FC93FFC99219 259ACDC4D5D421886DBAB3DC756CB9A43F8882E433F8DF2EF856F94F4DFC4441
Windows8.1-KB3151058-x64.msu 2A14FB6B05629361386B8A27244A33317031F92E AAE7CEBEAAADF9A6966015D2E87840424136F61ED113200A17767CEA3D566078
Windows8-RT-KB3151058-x64.msu 4495EB316DC2123BA6FED2605022FA2FB0C43137 7C7512107237FDB0C30FE5DB9BD92E5BA84B6777C6099461560E707E102D1B9E

      

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 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 0.17 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. 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
Bcryptprimitives.dll 6.3.9600.18154 340,872 03-Dec-2015 18:52 x86
Cng.sys 6.3.9600.18298 478,808 06-Apr-2016 17:49 x86
Ksecpkg.sys 6.3.9600.18154 148,312 03-Dec-2015 18:51 x86
Lsasrv.dll 6.3.9600.18298 1,118,720 06-Apr-2016 15:49 x86
Adtschema.dll 6.3.9600.17415 736,768 29-Oct-2014 02:06 x86
Msaudite.dll 6.3.9600.17415 154,112 29-Oct-2014 02:06 x86
Msobjs.dll 6.3.9600.16384 61,952 22-Aug-2013 04:17 x86
Ncrypt.dll 6.3.9600.18298 120,384 06-Apr-2016 17:49 x86
Ncryptsslp.dll 6.3.9600.18154 91,416 03-Dec-2015 18:52 x86
Schannel.dll 6.3.9600.18298 357,888 06-Apr-2016 15:48 x86
Mrxsmb10.sys 6.3.9600.18298 229,376 06-Apr-2016 16:48 x86
Mrxsmb20.sys 6.3.9600.18298 153,088 06-Apr-2016 16:49 x86
Mrxsmb.sys 6.3.9600.18298 328,704 06-Apr-2016 16:48 x86

For all supported x64-based versions

File name File version File size Date Time Platform SP requirement Service branch
Bcryptprimitives.dll 6.3.9600.18154 397,224 03-Dec-2015 19:42 x64 None Not applicable
Certcli.dll 6.3.9600.18298 445,440 06-Apr-2016 17:40 x64 None Not applicable
Cng.sys 6.3.9600.18298 561,960 06-Apr-2016 21:13 x64 None Not applicable
Ksecpkg.sys 6.3.9600.18154 177,488 03-Dec-2015 19:41 x64 None Not applicable
Lsasrv.dll 6.3.9600.18298 1,441,792 06-Apr-2016 16:57 x64 None Not applicable
Adtschema.dll 6.3.9600.17415 736,768 29-Oct-2014 02:50 x64 None Not applicable
Msaudite.dll 6.3.9600.17415 154,112 29-Oct-2014 02:51 x64 None Not applicable
Msobjs.dll 6.3.9600.16384 61,952 22-Aug-2013 11:46 x64 None Not applicable
Ncrypt.dll 6.3.9600.18298 137,976 06-Apr-2016 21:13 x64 None Not applicable
Ncryptsslp.dll 6.3.9600.18154 106,960 03-Dec-2015 19:42 x64 None Not applicable
Ocspisapi.dll 6.3.9600.17415 293,376 29-Oct-2014 01:43 x64 SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspisapictrs.h Not applicable 1,421 18-Jun-2013 15:06 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspisapictrs.ini Not applicable 2,636 18-Jun-2013 15:06 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,960 22-Aug-2013 19:26 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,134 22-Aug-2013 19:44 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,918 22-Aug-2013 12:30 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,210 22-Aug-2013 19:43 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,098 22-Aug-2013 19:30 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,028 22-Aug-2013 19:46 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,140 22-Aug-2013 19:31 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,642 22-Aug-2013 19:30 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,576 22-Aug-2013 19:31 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,026 22-Aug-2013 19:23 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,028 22-Aug-2013 19:23 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,188 22-Aug-2013 19:23 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,126 22-Aug-2013 19:33 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,064 22-Aug-2013 19:36 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,092 22-Aug-2013 19:36 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,828 22-Aug-2013 19:32 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,464 22-Aug-2013 19:20 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,480 22-Aug-2013 19:20 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,460 22-Aug-2013 19:21 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvc.exe 6.3.9600.17415 219,136 29-Oct-2014 02:19 x64 SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.h Not applicable 1,569 18-Jun-2013 15:06 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,918 18-Jun-2013 15:06 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Schannel.dll 6.3.9600.18298 432,128 06-Apr-2016 16:52 x64 None Not applicable
Mrxsmb10.sys 6.3.9600.18298 284,672 06-Apr-2016 18:19 x64 None Not applicable
Mrxsmb20.sys 6.3.9600.18298 201,728 06-Apr-2016 18:20 x64 None Not applicable
Mrxsmb.sys 6.3.9600.18298 401,920 06-Apr-2016 18:19 x64 None Not applicable
Schannel.dll 6.3.9600.18298 357,888 06-Apr-2016 15:48 x86 None Not applicable
Bcryptprimitives.dll 6.3.9600.18154 340,872 03-Dec-2015 18:52 x86 None Not applicable
Certcli.dll 6.3.9600.18298 324,096 06-Apr-2016 16:20 x86 None Not applicable
Adtschema.dll 6.3.9600.17415 736,768 29-Oct-2014 02:06 x86 None Not applicable
Msaudite.dll 6.3.9600.17415 154,112 29-Oct-2014 02:06 x86 None Not applicable
Msobjs.dll 6.3.9600.16384 61,952 22-Aug-2013 04:17 x86 None Not applicable
Ncrypt.dll 6.3.9600.18298 120,384 06-Apr-2016 17:49 x86 None Not applicable
Ncryptsslp.dll 6.3.9600.18154 91,416 03-Dec-2015 18:52 x86 None Not applicable

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 SP requirement Service branch
Bcryptprimitives.dll 6.2.9200.21637 374,936 22-Sep-2015 13:43 x64 None Not applicable
Ksecdd.sys 6.2.9200.21473 100,184 02-May-2015 06:23 x64 None Not applicable
Lsass.exe 6.2.9200.20521 35,840 20-Sep-2012 06:33 x64 None Not applicable
Sspicli.dll 6.2.9200.21703 164,352 17-Nov-2015 08:00 x64 None Not applicable
Sspisrv.dll 6.2.9200.20521 27,648 20-Sep-2012 06:32 x64 None Not applicable
Cng.sys 6.2.9200.21637 566,072 22-Sep-2015 13:43 x64 None Not applicable
Ksecpkg.sys 6.2.9200.21703 171,352 17-Nov-2015 09:52 x64 None Not applicable
Lsasrv.dll 6.2.9200.21830 1,280,000 09-Apr-2016 16:01 x64 None Not applicable
Adtschema.dll 6.2.9200.21289 719,360 10-Nov-2014 04:43 x64 None Not applicable
Msaudite.dll 6.2.9200.21269 146,944 11-Oct-2014 05:38 x64 None Not applicable
Msobjs.dll 6.2.9200.16384 61,952 26-Jul-2012 02:36 x64 None Not applicable
Ncrypt.dll 6.2.9200.21708 135,168 04-Dec-2015 20:37 x64 None Not applicable
Ncryptsslp.dll 6.2.9200.21708 89,088 04-Dec-2015 20:37 x64 None Not applicable
Ocspsvcctrs.ini Not applicable 2,960 26-Jul-2012 05:07 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,134 26-Jul-2012 08:00 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,918 26-Jul-2012 04:43 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,210 26-Jul-2012 07:59 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,098 26-Jul-2012 08:00 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,028 26-Jul-2012 07:59 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,140 26-Jul-2012 05:21 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,642 26-Jul-2012 08:11 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,576 26-Jul-2012 05:20 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,026 26-Jul-2012 07:36 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,028 26-Jul-2012 07:48 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,188 26-Jul-2012 05:30 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,126 26-Jul-2012 05:08 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,064 26-Jul-2012 07:49 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 3,092 26-Jul-2012 07:52 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,828 26-Jul-2012 05:12 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,464 26-Jul-2012 08:05 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,480 26-Jul-2012 05:13 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,460 26-Jul-2012 08:11 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvc.exe 6.2.9200.21345 272,384 15-Jan-2015 05:27 x64 SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.h Not applicable 1,569 02-Jun-2012 14:34 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Ocspsvcctrs.ini Not applicable 2,918 02-Jun-2012 14:34 Not applicable SPS AMD64_MICROSOFT-WINDOWS-OCSP
Credssp.dll 6.2.9200.21703 20,480 17-Nov-2015 07:59 x64 SP_ AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Tspkg.dll 6.2.9200.21703 94,720 17-Nov-2015 08:01 x64 SP_ AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Tspkg.mof Not applicable 964 02-Jun-2012 14:33 Not applicable SP_ AMD64_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Wdigest.dll 6.2.9200.21703 208,896 17-Nov-2015 08:01 x64 None Not applicable
Kerberos.dll 6.2.9200.21830 829,952 09-Apr-2016 16:01 x64 None Not applicable
Msv1_0.dll 6.2.9200.21830 317,952 09-Apr-2016 16:01 x64 None Not applicable
Schannel.dll 6.2.9200.21830 408,576 09-Apr-2016 16:01 x64 None Not applicable
Shcore.dll 6.2.9200.21703 590,848 17-Nov-2015 08:00 x64 None Not applicable
Mrxsmb10.sys 6.2.9200.21529 281,600 25-Jun-2015 18:52 x64 None Not applicable
Mrxsmb20.sys 6.2.9200.21548 205,312 11-Jul-2015 17:07 x64 None Not applicable
Mrxsmb.sys 6.2.9200.21342 396,800 06-Jan-2015 23:17 x64 None Not applicable
Lsm.dll 6.2.9200.21703 439,808 17-Nov-2015 08:00 x64 None Not applicable
Workerdd.dll 6.2.9200.21012 14,848 12-Apr-2014 06:58 x64 None Not applicable
Usercpl.dll 6.2.9200.21703 1,043,968 17-Nov-2015 08:01 x64 None Not applicable
Usercpl.ptxml Not applicable 789 11-Oct-2012 00:40 Not applicable None Not applicable
Winlogon.exe 6.2.9200.21703 578,048 17-Nov-2015 08:01 x64 None Not applicable
Sspicli.dll 6.2.9200.20984 99,840 10-Mar-2014 01:34 x86 None Not applicable
Wdigest.dll 6.2.9200.21703 176,640 17-Nov-2015 08:09 x86 None Not applicable
Kerberos.dll 6.2.9200.21830 666,112 09-Apr-2016 16:48 x86 None Not applicable
Msv1_0.dll 6.2.9200.21830 274,944 09-Apr-2016 16:48 x86 None Not applicable
Schannel.dll 6.2.9200.21830 335,872 09-Apr-2016 16:48 x86 None Not applicable
Bcryptprimitives.dll 6.2.9200.21637 333,584 22-Sep-2015 13:43 x86 None Not applicable
Adtschema.dll 6.2.9200.21289 719,360 10-Nov-2014 03:40 x86 None Not applicable
Msaudite.dll 6.2.9200.21269 146,944 11-Oct-2014 04:35 x86 None Not applicable
Msobjs.dll 6.2.9200.16384 61,952 26-Jul-2012 02:47 x86 None Not applicable
Ncrypt.dll 6.2.9200.21708 89,088 04-Dec-2015 20:11 x86 None Not applicable
Ncryptsslp.dll 6.2.9200.21708 73,728 04-Dec-2015 20:11 x86 None Not applicable
Credssp.dll 6.2.9200.21703 17,408 17-Nov-2015 08:08 x86 SP_ X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Tspkg.dll 6.2.9200.21703 76,800 17-Nov-2015 08:09 x86 SP_ X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Tspkg.mof Not applicable 964 02-Jun-2012 14:33 Not applicable SP_ X86_MICROSOFT-WINDOWS-SECURITY-CREDSSP
Shcore.dll 6.2.9200.21703 460,800 17-Nov-2015 08:09 x86 None Not applicable
Usercpl.dll 6.2.9200.21703 961,536 17-Nov-2015 08:09 x86 None Not applicable
Usercpl.ptxml Not applicable 789 11-Oct-2012 00:42 Not applicable None Not applicable