MS16-067: Security update for volume manager driver: May 10, 2016

Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow information disclosure if a USB disk mounted over Remote Desktop Protocol (RDP) via Microsoft RemoteFX is not correctly tied to the session of the mounting user.

To learn more about the vulnerability, see Microsoft Security Bulletin MS16-067.

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.

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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 MS16-067 that corresponds to the version of Windows that you are running.

More Information

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Security update deployment information

Windows 8.1 (all editions)
Reference table

The following table contains the security update information for this software.

Security update file name| For all supported 32-bit editions of Windows 8.1:
Windows8.1-KB3155784-x86.msu
—|—

| For all supported x64-based editions of Windows 8.1:
Windows8.1-KB3155784-x64.msu
Installation switches| See Microsoft Knowledge Base Article 934307
Restart requirement| In some cases, this update does not require a system restart. If the required files are being used, this update will require a system restart. If this behavior occurs, you receive a message that advises you to restart your system.
Removal information| To uninstall an update 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 information| See Microsoft Knowledge Base Article 3155784
Registry key verification| Note 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 name| For all supported editions of Windows Server 2012:
Windows8-RT-KB3155784-x64.msu
—|—

| For all supported editions of Windows Server 2012 R2:
Windows8.1-KB3155784-x64.msu
Installation switches| See Microsoft Knowledge Base Article 934307
Restart requirement| In some cases, this update does not require a system restart. If the required files are being used, this update will require a system restart. If this behavior occurs, you receive a message that advises you to restart your system.
Removal information| To uninstall an update installed by WUSA, use the /Uninstall setup switch or clickControl Panel, clickSystem and Security, clickWindows Update, and then under See also, clickInstalled updates and select from the list of updates.
File information| See Microsoft Knowledge Base Article 3155784
Registry key verification| Note A registry key does not exist to validate the presence of this update.
Windows RT 8.1 (all editions)
Reference table

The following table contains the security update information for this software.

Deployment	The update is available via Windows Update only.
Restart Requirement	In some cases, this update does not require a system restart. If the required files are being used, this update will require a system restart. If this behavior occurs, you receive a message that advises you to restart your system.
Removal Information	Click Control Panel, clickSystem and Security, clickWindows Update, click Installed updates under See also, and then select from the list of updates.
File Information	See Microsoft Knowledge Base Article 3155784

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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

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File hash information

File name	SHA1 hash	SHA256 hash
Windows8-RT-KB3155784-x64.msu	8B008FCA6133BFB97944F32C46CA30FA404FBD8E	B35A1157CB4FD0FC04C7AE5F3D4AD29D73D2B997E44445783EE8AD97C0F994C6
Windows8.1-KB3155784-x64.msu	2A5C14E67FC1C00A974E2B1B892C15132B780F59	40060D933DC793C9FD50FB9A314B1C24C35FBEDE386B9CDF187F57467614F171
Windows8.1-KB3155784-x86.msu	3DCC7DE760267BFD0430B39FC41F8FA0B5F27CA4	DD8C57FC39145A9DE33DEBBA067109E4FEDCE7C7DE705D5FED89F6074CEE7778

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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 informationNotes

• 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 versionsFile name| File version| File size| Date| Time| Platform
  —|—|—|—|—|—
  Volmgr.sys| 6.2.9200.21831| 83,296| 09-Apr-2016| 18:03| x64
  Windows 8.1 and Windows Server 2012 R2 file informationNotes

• 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 0.17xxx| 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 x64-based versionsFile name| File version| File size| Date| Time| Platform
  —|—|—|—|—|—
  Volmgr.sys| 6.3.9600.18302| 74,584| 11-Apr-2016| 06:21| x64
  For all supported x86-based versionsFile name| File version| File size| Date| Time| Platform
  —|—|—|—|—|—
  Volmgr.sys| 6.3.9600.18302| 58,712| 11-Apr-2016| 06:25| x86