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MS13-052: Description of the security update for Microsoft Silverlight: July 9, 2013

Introduction
Resolves a vulnerability in Microsoft Silverlight that could allow remote code execution on a client system if a user views a specially crafted webpage by using a web browser that can run Silverlight applications.
Summary
Microsoft has released the security bulletin MS13-052. You can view the complete security bulletin by going to one of the following Microsoft websites: 

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 Solution and Security Center

Local support according to your country: International Support

Update information

Microsoft Silverlight is a cross-browser, multi-environment plug-in that delivers the next generation of Microsoft .NET Framework-based media experiences and rich interactive applications for the web.

This update offers a new build (version 5.1.20513.0) that is an upgrade to earlier versions of Silverlight. This update is included in current Silverlight installers. 

This update is available from the following sources:
Silverlight site
The Silverlight installer includes all earlier updates in addition to this update. To install the latest version of Silverlight on your computer, go to the following Microsoft website:
Microsoft update and Windows Server Update Services (WSUS)
If you have an earlier version of Silverlight installed on your computer, this update is available from Microsoft Update and Windows Server Update Services (WSUS) as an important update and will be offered as the following:
Update for Microsoft Silverlight (KB 2847559)
If you do not have an earlier version of Silverlight installed, this update is also available from Microsoft Update and Windows Server Update Services (WSUS) as an optional update and will be offered as the following:
Microsoft Silverlight (KB 2847559)

How to hide this update so that it does not appear again

Click here to view or hide detailed information
Windows XP
  1. Click Start, point to All Programs, and then click Windows Update or Microsoft Update.
  2. Click Custom.
  3. Click to clear the check box that is next to the update that you want to hide.
  4. Expand the update that you want to hide, and then click to select the Don't show this update again check box.
Windows Vista and Windows 7
  1. Click Start, point to All Programs, and then click Windows Update.
  2. Click Check for updates.
  3. After the scan for updates is complete, click the Optional updates are available link.
  4. In the Select the updates you want to install section, right-click the update that you want to hide, and then click Hide update.
  5. Click OK.

Update release history

For information about non-security-related fixes that are included in this update in addition to the release history for Microsoft Silverlight 5, go to the following Microsoft website:

Removal information

To remove Silverlight, go to the following Microsoft website, and then click Uninstall Silverlight:

File information

The English (United States) version of this security 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.
File nameFile versionFile sizeDateTime
Silverlight.exe5.1.20513695314-May-201306:45
Silverlight_x64.exe5.1.205131307814-May-201307:42
Silverlight_Developer.exe5.1.20513933714-May-201307:07
Silverlight_Developer_x64.exe5.1.205131784214-May-201308:07
Silverlight.dmg5.1.205131493114-May-201308:48
Silverlight_Developer.dmg5.1.205132050414-May-201308:48
References
For more information about Silverlight, go to the following Microsoft websites: To report issues about this update or to send any feedback to the Microsoft Silverlight development team, go to the following Microsoft website:

Applies to

This article applies to the following:
  • Microsoft Silverlight 5
Properties

Article ID: 2847559 - Last Review: 07/11/2013 00:40:00 - Revision: 2.0

  • kbsecvulnerability kbsecurity kbsecbulletin kbfix kbexpertiseinter kbbug atdownload KB2847559
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