MS14-057: Description of the security update for the .NET Framework 4.5, the .NET Framework 4.5.1, and the .NET Framework 4.5.2 for Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1: October 14, 2014


View products that this article applies to.

Introduction

This security update resolves vulnerabilities that could allow remote code execution if an attacker sends a specially crafted URL request that contains international characters to a .NET web application.

Summary

Microsoft has released security bulletin MS14-057. Learn more about how to obtain the fixes that are included in this security bulletin:

How to obtain help and support for this security update

Help installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help protect your computer that is running Windows from viruses and malware: Virus and Security Solution Center

Local support according to your country: International Support

More information about this security update

Download information

To install this update, install it from Microsoft Windows Update.

Additionally, you can install this update from the Microsoft Download Center.

Prerequisites

To install this update, you must have Windows Installer 3.1 or a later version installed on the computer.

Command-line switches for this update

Learn about the various command-line switches that are supported by this Microsoft .NET Framework update.

Restart information

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

Update replacement information

This update replaces update 2729460.

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.

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 systemsGDR service branch

File name

File version

File size

Date

Time

System.dll

4.0.30319.34238

3,471,488

08-Aug-2014

08:10

LDR service branch

File name

File version

File size

Date

Time

System.dll

4.0.30319.36250

3,472,504

08-Aug-2014

08:39

For all supported x64-based versions of systemsGDR service branch

File name

File version

File size

Date

Time

System.dll

4.0.30319.34238

3,471,488

08-Aug-2014

08:10

LDR service branch

File name

File version

File size

Date

Time

System.dll

4.0.30319.36250

3,472,504

08-Aug-2014

08:39


Applies toThis article applies to the following:

  • Microsoft .NET Framework 4.5.2 when used with:


    • Windows Server 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

    • Windows Server 2008 Service Pack 2

    • Windows Vista Service Pack 2

  • Microsoft .NET Framework 4.5.1 when used with:

    • Windows Server 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

    • Windows Server 2008 Service Pack 2

    • Windows Vista Service Pack 2

  • Microsoft .NET Framework 4.5 when used with:

    • Windows Server 2008 R2 Service Pack 1

    • Windows 7 Service Pack 1

    • Windows Server 2008 Service Pack 2

    • Windows Vista Service Pack 2

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