MS16-021: Security update for NPS RADIUS server to address denial of service: February 9, 2016

Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could cause denial of service on a Network Policy Server (NPS) if an attacker sends specially crafted username strings to the NPS. This scenario could prevent RADIUS authentication on the NPS. 

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-021.

More Information

Important
  • All future security and nonsecurity updates for Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your 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.
Method 2: Microsoft Download Center

More Information

Security update deployment information

File Information

File hash information

File nameSHA1 hashSHA256 hash
Windows8-RT-KB3133043-x64.msu8D265B3FA94C47D4F031BF4139208B20FAFE38714117A699450F26035D3C4292159FBB4E85176F4CB833F6D2A65B08EC3C37092D
Windows8.1-KB3133043-x64.msu4D4F74206EDCC073BC1C3523F5B642D7B55C261527B8B9F8385E976C01FB0C8941F5C363DDBD6A1AF7B4AF561A0F24609E87B908
Windows6.1-KB3133043-x64.msu43094309E6085F94D44A31F94C6ECBF473F6AD12AEFCDCF7D8A8D9759BBC1FE4AC0493760F5410AF912D4022BC2816653AEF32AB
Windows6.0-KB3133043-x86.msuEC383824516669B8D277521499FB54751058360842EB830CF30A0C773E97143B9A79B70C25284DD2B72899429D70FB261E7C9B7E
Windows6.0-KB3133043-x64.msu5B5483F7A60B9B2E3B8FF0AA5AD440E0D68B3EB3750DA59CE2774AFB245D6494C499BDB3E4F017EA3F79E90B71A3614A49287ACD

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 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 Server 2012RTMGDR
    6.2.920 0.21xxxWindows 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
Iassam.dll6.2.9200.17623276,48010-Jan-201615:40x64
Iassam.dll6.2.9200.21743276,48010-Jan-201602:24x64
Iassam.dll6.2.9200.17623219,13610-Jan-201612:04x86
Iassam.dll6.2.9200.21743219,13610-Jan-201600:13x86

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 x64-based versions
File nameFile versionFile sizeDateTimePlatform
Iassam.dll6.1.7601.19114254,46408-Jan-201618:56x64
Iassam.dll6.1.7601.23318254,46408-Jan-201619:07x64
Iassam.dll6.1.7601.19114192,51208-Jan-201618:37x86
Iassam.dll6.1.7601.23318192,51208-Jan-201618:46x86

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 0.17 xxxWindows 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 x64-based versions
File nameFile versionFile sizeDateTimePlatform
Iassam.dll6.3.9600.18191276,48008-Jan-201617:58x64
Iassam.dll6.3.9600.18191223,23208-Jan-201617:22x86

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 Server 2008SP2GDR
    6.0.600 2.23xxxWindows 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 x86-based versions
File nameFile versionFile sizeDateTimePlatform
Iassam.dll6.0.6002.19578182,78409-Jan-201617:06x86
Iassam.dll6.0.6002.23888182,78409-Jan-201616:33x86
For all supported x64-based versions
File nameFile versionFile sizeDateTimePlatform
Iassam.dll6.0.6002.19578242,68809-Jan-201616:42x64
Iassam.dll6.0.6002.23888242,68809-Jan-201616:40x64
Iassam.dll6.0.6002.19578182,78409-Jan-201617:06x86
Iassam.dll6.0.6002.23888182,78409-Jan-201616:33x86
Properties

Article ID: 3133043 - Last Review: Feb 9, 2016 - Revision: 1

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2008 R2 Service Pack 1, Windows Server 2008 R2 Datacenter, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Standard, Windows Web Server 2008 R2, Windows Server 2008 R2 Foundation, Windows Server 2008 Service Pack 2, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 Standard, Windows Web Server 2008, Windows Server 2008 Foundation

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