MS15-068: Description of the security update for Windows Hyper-V: July 14, 2015

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 Datacenter Windows Server 2012 Standard Windows Server 2012 Standard Windows Server 2012 Essentials Windows Server 2012 Foundation Windows Server 2012 Foundation Windows 8 Enterprise Windows 8 Pro Windows 8 Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition Windows Server 2008 R2 Foundation

Summary

This security update resolves vulnerabilities in Windows that could allow remote code execution in a host context if a specially crafted application is run by an authenticated and privileged user on a guest virtual machine that is hosted by Hyper-V. An attacker must have valid logon credentials for a guest virtual machine to exploit this vulnerability. To learn more about the vulnerability, see Microsoft Security Bulletin MS15-068.

More Information

Important

  • All future security and nonsecurity updates for Windows 8.1 and Windows Server 2012 R2 require update 2919355 to be installed. We recommend that you install update 2919355 on your 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.

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 MS15-068 that corresponds to the version of Windows that you are running.

More Information

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time and with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Windows Vista and Windows Server 2008 file information

  • The files that apply to a specific product, milestone (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
    6.0.6002.18xxx Windows Vista SP2 and Windows Server 2008 SP2 SP2 GDR
    6.0.6002.23xxx Windows Vista SP2 and Windows Server 2008 SP2 SP2 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.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x64-based versions of Windows Vista and Windows Server 2008

File name File version File size Date Time Platform
Vmicvss.dll 6.0.6002.19378 199,168 04-May-2015 22:33 x64
Vmicvss.dll 6.0.6002.23684 199,168 02-May-2015 15:25 x64
Vmicshutdown.dll 6.0.6002.19378 194,560 04-May-2015 22:33 x64
Vmicshutdown.dll 6.0.6002.23684 194,560 02-May-2015 15:25 x64
Vmictimesync.dll 6.0.6002.19378 197,632 04-May-2015 22:33 x64
Vmictimesync.dll 6.0.6002.23684 197,632 02-May-2015 15:25 x64
Vmicheartbeat.dll 6.0.6002.19378 198,656 04-May-2015 22:33 x64
Vmicheartbeat.dll 6.0.6002.23684 198,656 02-May-2015 15:25 x64
Vmickvpexchange.dll 6.0.6002.19378 259,584 04-May-2015 22:33 x64
Vmickvpexchange.dll 6.0.6002.23684 259,584 02-May-2015 15:25 x64

Windows 7 and Windows Server 2008 R2 file information

  • 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
    6.1.7601.18xxx Windows 7 and Windows Server 2008 R2 SP1 GDR
    6.1.7601.22xxx Windows 7 and 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.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name File version File size Date Time Platform
Vmicvss.dll 6.1.7601.18844 208,384 05-May-2015 20:14 x64
Vmicvss.dll 6.1.7601.23045 208,384 05-May-2015 03:40 x64
Vmicshutdown.dll 6.1.7601.18844 206,848 05-May-2015 20:14 x64
Vmicshutdown.dll 6.1.7601.23045 206,848 05-May-2015 03:40 x64
Vmictimesync.dll 6.1.7601.18844 209,408 05-May-2015 20:14 x64
Vmictimesync.dll 6.1.7601.23045 209,408 05-May-2015 03:40 x64
Vmicheartbeat.dll 6.1.7601.18844 210,432 05-May-2015 20:14 x64
Vmicheartbeat.dll 6.1.7601.23045 210,432 05-May-2015 03:40 x64
Vmickvpexchange.dll 6.1.7601.18844 282,112 05-May-2015 20:14 x64
Vmickvpexchange.dll 6.1.7601.23045 282,112 05-May-2015 03:40 x64

Windows 8 and Windows Server 2012 file information

  • 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 0.16 xxx Windows 8 and Windows Server 2012 RTM GDR
    6.2.920 0.20 xxx Windows 8 and 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.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x64-based versions of Windows 8 and Windows Server 2012

File name File version File size Date Time Platform
Vmicrdv.dll 6.2.9200.17361 269,824 30-Apr-2015 16:54 x64
Vmicrdv.dll 6.2.9200.21473 269,824 30-Apr-2015 16:52 x64
Vmicvss.dll 6.2.9200.17361 211,968 30-Apr-2015 17:03 x64
Vmicvss.dll 6.2.9200.21473 211,968 30-Apr-2015 17:01 x64
Vmicshutdown.dll 6.2.9200.17361 238,080 30-Apr-2015 17:03 x64
Vmicshutdown.dll 6.2.9200.21473 238,080 30-Apr-2015 17:01 x64
Vmictimesync.dll 6.2.9200.17361 205,312 30-Apr-2015 17:03 x64
Vmictimesync.dll 6.2.9200.21473 205,312 30-Apr-2015 17:01 x64
Vmicheartbeat.dll 6.2.9200.17361 207,872 30-Apr-2015 17:03 x64
Vmicheartbeat.dll 6.2.9200.21473 207,872 30-Apr-2015 17:01 x64
Vmickvpexchange.dll 6.2.9200.17361 281,600 30-Apr-2015 17:03 x64
Vmickvpexchange.dll 6.2.9200.21473 281,600 30-Apr-2015 17:01 x64

Windows 8.1 and Windows Server 2012 R2 file information

  • 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
    6.3.920 0.16 xxx 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.

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File name File version File size Date Time Platform
Vmicrdv.dll 6.3.9600.17723 154,624 09-Mar-2015 00:20 x64
Vmicvss.dll 6.3.9600.17723 154,624 09-Mar-2015 00:21 x64
Vmicshutdown.dll 6.3.9600.17723 174,592 09-Mar-2015 00:23 x64
Vmictimesync.dll 6.3.9600.17723 145,408 09-Mar-2015 00:23 x64
Vmicguestinterface.dll 6.3.9600.17723 145,920 09-Mar-2015 00:24 x64
Vmicheartbeat.dll 6.3.9600.17723 147,968 09-Mar-2015 00:22 x64
Vmickvpexchange.dll 6.3.9600.17723 206,848 09-Mar-2015 00:25 x64

      

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