Description of the security update for the Hyper-V remote code execution vulnerability in Windows Server 2008: April 10, 2018

Summary

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system.

To learn more about the vulnerability, see CVE-2018-0959.

More Information

Important 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 Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:
Security update deployment information: April 10, 2018

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 together with your current daylight saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.

Windows Server 2008 file information

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

How to obtain help and support for this security update

Help for installing updates: Windows Update: FAQ

Security solutions for IT professionals: TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

File Information

File hash information

File name	SHA1 hash	SHA256 hash
Windows6.0-KB4094079-x64.msu	A95E963D66CA4401BC5EC30F402CEC24F16C7329	A87647244911CDF5B59C8A512E4CC565E745F2481E30E393BFC1CB4671ED7C42

For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Synthstor.dll	6.0.6002.24362	363,520	08-Apr-2018	14:37	x64
Synthnic.dll	6.0.6002.24362	249,856	08-Apr-2018	14:37	x64
Vmms.exe	6.0.6002.24362	3,913,216	08-Apr-2018	14:09	x64
Vmwp.exe	6.0.6002.24362	3,312,640	08-Apr-2018	14:09	x64