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Summary

This update resolves a vulnerability in the Microsoft .NET Framework. The security feature bypass exists in a .NET Framework component that does not properly validate certain elements of a signed XML document. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-035.

Known issues in this security update

You may experience the following issue after you install this update:

After you apply security update 3141780, .NET Framework applications encounter exception errors or unexpected failures while processing files that contain SignedXml

How to obtain and install this 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 get security updates automatically, see the "Turn on automatic updating in the Control Panel" section of this Safety & Security Center article.

Method 2: Microsoft Download Center

You can obtain the stand-alone update package through the Microsoft Download Center. To install this update, follow the install instructions on the download page.

Download Download security update 3135983

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3141780.

Update removal information

Note 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 information

This 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 information

This update replaces previously released updates 2863240 and 3032655.

File hash

Windows6.1-KB3135983-ia64.msu

DA0A336D79D48C9FFE9CC22A72DB97049E1DEEDC

E3C9DC6DDE411D7849546E82018ADCBFE3F141B581D2F89F42EBCB84A22BCE13

Windows6.1-KB3135983-x64.msu

1B3FD06C4E9F0960FCECBCC3C94204524853DC5B

C6B3E953CA32A4A8892AD9441104984D0946E6E6393B25801A92602555F879FB

Windows6.1-KB3135983-x86.msu

BE3B3AD58ACC3920FBDD7F34111217038A73660F

111C82F8C0FCCA223DAD582D884200D3A8AC048074C95BFD5C4E3F672D78EF99

File attributes

The 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 systems

GDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

LDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

For all supported x64-based versions of systems

GDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

LDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

For all supported IA64-based versions of systems

GDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.5496

266,240

03-Feb-2016

14:07

LDR service branch

File name

File version

File size

Date

Time

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07

system.security.dll

2.0.50727.8683

266,240

03-Feb-2016

14:07


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 3.5.1 when used with:

    • Windows Server 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

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