MS15-085: Vulnerability in Mount Manager could allow elevation of privilege: August 11, 2015

Summary
This security update resolves a vulnerability in Windows that could allow elevation of privilege if an attacker inserts a malicious USB device into a target system. An attacker could then write a malicious binary to disk and execute the code.

To learn more about the vulnerability, see Microsoft Security Bulletin MS15-085.
More information
Important
  • 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.
Additional information about this security update
The following articles contain additional information about this security update as it relates to individual product versions. The articles may contain known issue information.
  • 3071756 MS15-085: Description of the security update for Windows Mount Manager: August 11, 2015
  • 3081436 Cumulative Security Update for Windows 10: August 11, 2015
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.

Method 2: 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 MS15-085 that corresponds to the version of Windows that you are running.
More information

Security update deployment information

Windows Vista (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file namesFor all supported 32-bit editions of Windows Vista:
Windows6.0-KB3071756-x86.msu

For all supported x64-based editions of Windows Vista:
Windows6.0-KB3071756-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationWUSA.exe does not support the removal of updates. To uninstall an update that was installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows Server 2008 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file namesFor all supported 32-bit editions of Windows Server 2008:
Windows6.0-KB3071756-x86.msu

For all supported x64-based editions of Windows Server 2008:
Windows6.0-KB3071756-x64.msu

For all supported Itanium-based editions of Windows Server 2008:
Windows6.0-KB3071756-ia64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationWUSA.exe does not support the removal of updates. To uninstall an update that was installed by WUSA, click Control Panel, and then click Security. Under Windows Update, click View installed updates, and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows 7 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported 32-bit editions of Windows 7:
Windows6.1-KB3071756-x86.msu

For all supported x64-based editions of Windows 7:
Windows6.1-KB3071756-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationTo uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates, and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote A registry key does not exist to validate the presence of this update.
Windows Server 2008 R2 (all editions)Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported x64-based editions of Windows Server 2008 R2:
Windows6.1-KB3071756-x64.msu

For all supported Itanium-based editions of Windows Server 2008 R2:
Windows6.1-KB3071756-ia64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationTo uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, and then under Windows Update, click View installed updates, and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote A registry key does not exist to validate the presence of this update.

Windows 8 and Windows 8.1 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported 32-bit editions of Windows 8:
Windows8-RT-KB3071756-x86.msu

For all supported x64-based editions of Windows 8:
Windows8-RT-KB3071756-x64.msu

For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3071756-x86.msu

For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3071756-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationTo uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote 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 nameFor all supported editions of Windows Server 2012:
Windows8-RT-KB3071756-x64.msu

For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3071756-x64.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationTo uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3071756
Registry key verificationNote 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.
DeploymentThese updates are available through Windows Update only.
Restart RequirementA system restart is required after you apply this security update.
Removal InformationClick Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.
File InformationSee Microsoft Knowledge Base Article 3071756

Windows 10 (all editions)

Reference Table

The following table contains the security update information for this software.
Security update file nameFor all supported 32-bit editions of Windows 10:
KB3081436-Win10-RTM-X86-TSL.msu

For all supported x64-based editions of Windows 10:
KB3081436-Win10-RTM-X64-TSL.msu
Installation switchesSee Microsoft Knowledge Base Article 934307
Restart requirementA system restart is required after you apply this security update.
Removal informationTo uninstall an update that was installed by WUSA, use the /Uninstall setup switch or click Control Panel, click System and Security, click Windows Update, and then under See also, click Installed updates and select from the list of updates.
File informationSee Microsoft Knowledge Base Article 3081436
Registry key verificationNote A registry key does not exist to validate the presence of this update.

File hash information

File nameSHA1 hashSHA256 hash
Windows6.0-KB3071756-ia64.msuDEE4966E4005C4D33E4ACA66E9EAAA9530E18A40A05BC84BD66A743EAC449485E5F99F5329A789C6AF346BE05D0E005DBD4B5010
Windows6.0-KB3071756-x64.msu24AEEDD561CC2D72ED16D8B871435BC071C723D1C52D5D1D989D14E7EDB3DA1CE7798D7382F087595CD2437A45E98E9D559A3AC7
Windows6.0-KB3071756-x86.msuAC57540C110B73530C7E513F8973A2331B474323F6276927E91F937E318FDF7303DB2B347C518CDE5D45A37B97F40A393AFD95E3
Windows6.0-KB9898989-ia64.msu5AF643CD70AD37555CA2EE09EAB0122072A937FA9F6B902CC9A30D5D9ABF236B479096F802FB40E553FB48B0C4B6EB8522549E73
Windows6.0-KB9898989-x64.msuE9F066124E3408ED6B0CA9FA0830C8B33106D954E06AD388617083F80C4A464E6EB7758F333850F00677595FC3C61F436A168D45
Windows6.0-KB9898989-x86.msu1C1DDBCF346B61A3E338A2D6464947E32F7643B09F43B1B5820B8614446303869311635E94991CE1303CD90075587DD8A858A5F8
Windows6.1-KB3071756-ia64.msuE13BECBD389B9F0DBB2BDBDDA9213A2830E48F6B401D82AEB7767973AFEDD8128A32026D817E77BE1C80288E907C6F2CDBC86C8C
Windows6.1-KB3071756-x64.msuB1AAB0EF3752C52636409B50EB7853F645859E783685E70B4716A3AF0A3DBF18B54F64F216295788C34F3FEA142982FAE09CDC00
Windows6.1-KB3071756-x86.msu31BF25FD49F04F2397666A6FF45D5F676202EFC9B61E184B29591B2DF11154112EFD430E2EE5496F2DA27F661882E9FBA988B5E3
Windows8.1-KB3071756-arm.msu40DA197E2E4798D1C48DB4961066A9262447AE1A462A3AAD9A6140464F5BD44DBC2695FF2CA72F8E4889CEA46FD977F570DFBE36
Windows8.1-KB3071756-x64.msu481757325634850FEC6798A4A7DCF67139E72AAC2A09F3CC4E9C6CF011882B05ABB05AE69203D10460D86933F17242C0F9F5D7ED
Windows8.1-KB3071756-x86.msuC81D576B23663AF556E42292550FCFC2CB7F622B848C8BAECE935713828D76F0DD0A5ADBCFFC62B48813E705F8814BF30232D118
Windows8-RT-KB3071756-arm.msuE1AB13F514DF1497F389CCFE825177928A6895036AF278B36A16BFF537E8BA2B95B0DAA495F9AF71EE6F93E91D345E7E804A28B2
Windows8-RT-KB3071756-x64.msu261FEE52A8FB9966C6066DE1C4FA9BD01B0E56D3D63EBD1F93EE8F81815FC7D1E9FCB37B8AEB9CA2EDD4CA90175FA317FDACA735
Windows8-RT-KB3071756-x86.msuEE678704D85D6D27A03C1D75B61EDEED578DE4326DD9E69660AA650CA135C5B399FC9A169DBEF8CF0C0B9A41A79DED63DF801E15

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
Properties

Article ID: 3082487 - Last Review: 08/11/2015 17:33:00 - Revision: 1.0

Windows 10, 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 8 Enterprise, Windows 8 Pro, Windows 8, Windows RT, 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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