MS16-120: Description of the security update for the .NET Framework 3.5 for Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2: October 11, 2016

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Summary

This update resolves vulnerabilities in the Microsoft .NET Framework. The vulnerabilities could allow remote code execution if a user either visits a specially crafted website or opens a specially crafted document. This update addresses the vulnerabilities by correcting how the Windows font library handles embedded fonts. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-120.

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.

How to obtain and install this update

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Method 1: Microsoft Update Catalog

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

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Method 2: Windows Software Update Services (WSUS)

On the WSUS server, follow these steps:

1. Click Start, clickAdministrative Tools, and then clickMicrosoft Windows Server Update Services 3.0.
2. Expand ComputerName, and then clickAction.
3. Click Import Updates.
4. If WSUS opens a browser window in which you are prompted to install an ActiveX control, install the control to continue.

Note After the ActiveX control is installed, the Microsoft Update Catalog screen opens.
5. Enter some search criteria in the Search box, and then clickSearch.
6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.
7. When you have selected all the packages that you require, click View Basket.
8. Click Import to import the packages into your WSUS server.
9. After the packages have been imported, click Closeto return to WSUS.

The updates are now available for installation through WSUS.

Update deployment informationFor deployment information about this update, see Microsoft Knowledge Base article 3192884.Update removal informationNote We do not recommend that you remove any security update.

To remove this update, use the Programs and Features item in Control Panel.

Update restart informationThis update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement informationThis update does not replace any previously released update.

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File information

File hashWindows8.1-KB3188732-x64.msu	E25F84D705E2C4F88FE87CFDBD38F0098198565F	36FA72E2700EFC2157FFF06A3804D045E74FCB15E201FE064DB03D52AF94C75F
Windows8.1-KB3188732-x86.msu	D7E327E3D29A62F72047BC538B905F9EDFFB391F	C4E3F8EF38576813F6024D6EB736792854766DA4D22DB117BBCBD8610319F080
File attributesThe English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the 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 the times may change when you perform certain operations on the files.

For all supported x86-based versions of systemsFile name	File version	File size	Date	Time
presentationframework.dll	3.0.6920.8720	5,283,840	30-Aug-2016	13:12
reachframework.dll	3.0.6920.8720	532,480	30-Aug-2016	13:12
windowsbase.dll	3.0.6920.8720	1,253,376	30-Aug-2016	13:12
presentationcore.dll	3.0.6920.8720	4,222,976	30-Aug-2016	13:12
presentationfontcache.exe.config		161	20-Aug-2015	13:24
wpfgfx_v0300.dll	3.0.6920.8720	1,737,888	30-Aug-2016	13:12
system.printing.dll	3.0.6920.8720	372,736	30-Aug-2016	13:12
penimc.dll	3.0.6920.8720	68,752	30-Aug-2016	13:12
presentationframework.dll	3.0.6920.8720	5,283,840	30-Aug-2016	13:12
presentationhostdll.dll	3.0.6920.8720	131,248	30-Aug-2016	13:12
reachframework.dll	3.0.6920.8720	532,480	30-Aug-2016	13:12
windowsbase.dll	3.0.6920.8720	1,253,376	30-Aug-2016	13:12
For all supported x64-based versions of systemsFile name	File version	File size	Date	Time
—	—	—	—	—
presentationcore.dll	3.0.6920.8720	4,006,400	30-Aug-2016	13:11
presentationfontcache.exe.config		161	22-Aug-2015	13:27
wpfgfx_v0300.dll	3.0.6920.8720	2,256,032	30-Aug-2016	13:12
system.printing.dll	3.0.6920.8720	358,400	30-Aug-2016	13:11
penimc.dll	3.0.6920.8720	85,648	30-Aug-2016	13:11
presentationframework.dll	3.0.6920.8720	4,640,768	30-Aug-2016	13:11
presentationhostdll.dll	3.0.6920.8720	172,208	30-Aug-2016	13:12
reachframework.dll	3.0.6920.8720	532,480	30-Aug-2016	13:11
windowsbase.dll	3.0.6920.8720	1,114,112	30-Aug-2016	13:11
presentationframework.dll	3.0.6920.8720	5,283,840	30-Aug-2016	13:12
reachframework.dll	3.0.6920.8720	532,480	30-Aug-2016	13:12
windowsbase.dll	3.0.6920.8720	1,253,376	30-Aug-2016	13:12
presentationcore.dll	3.0.6920.8720	4,222,976	30-Aug-2016	13:12
presentationfontcache.exe.config		161	20-Aug-2015	13:24
wpfgfx_v0300.dll	3.0.6920.8720	1,737,888	30-Aug-2016	13:12
system.printing.dll	3.0.6920.8720	372,736	30-Aug-2016	13:12
penimc.dll	3.0.6920.8720	68,752	30-Aug-2016	13:12
presentationframework.dll	3.0.6920.8720	5,283,840	30-Aug-2016	13:12
presentationhostdll.dll	3.0.6920.8720	131,248	30-Aug-2016	13:12
reachframework.dll	3.0.6920.8720	532,480	30-Aug-2016	13:12
windowsbase.dll	3.0.6920.8720	1,253,376	30-Aug-2016	13:12

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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

Applies toThis article applies to the following:

• Microsoft .NET Framework 3.5 when used with:
  • Windows Server 2012 R2
  • Windows 8.1