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Introduction

This security update resolves vulnerabilities that could allow security feature bypass if a specially crafted file is opened in an affected edition of Microsoft Office.

Summary

Microsoft has released security bulletin MS15-013. Learn more about how to obtain the fixes 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 Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

More information about this security update

Download information

This update is available for download from the Microsoft Download Center.

Prerequisites to apply this security update

To apply this security update, you must have the released version or Service Pack 1 for Office 2013 installed on the computer.

Restart information

You may have to restart the computer after you install this security update.

In some cases, this update does not require a restart. If the required files are being used, this update will require a restart. If this behavior occurs, a message is displayed that advises you to restart the computer.

To help reduce the possibility that a restart will be required, stop all affected services and close all applications that may use the affected files before you install this security update.

Learn about why you may be prompted to restart your computer after you install a security update on a Windows-based computer.

Removal information

Note We do not recommend that you remove any security update.

To remove this security update, use the Add or Remove Programs item or use the Programs and Features item in Control Panel.

Note When you remove this security update, you may be prompted to insert the disc that contains Microsoft Office. Additionally, you may not have the option to uninstall this security update from the Add or Remove Programs item or the Programs and Features item in Control Panel. There are several possible causes for this issue.

Learn about the ability to uninstall Office updates.

Security update replacement information

This security update does not replace any previously released security update.

The English version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For all supported x86-based versions of Office 2013

File name

File version

File size

Date

Time

Msosec.dll

7.10.5078.0

13,960

13-Nov-2014

01:16

Msvcr71.dll

7.10.3078.0

354,944

13-Nov-2014

01:16

Otkloadr.dll

7.10.5078

88,720

13-Nov-2014

01:16

For all supported x64-based versions of Office 2013

File name

File version

File size

Date

Time

msosec.dll

7.10.5078.0

13,960

13-Nov-2014

01:16


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