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MS15-009: Description of the security update for JScript9.dll in Internet Explorer: February 10, 2015

Summary
This article describes the cumulative security update for JScript9.dll in Internet Explorer that is dated February 10, 2015. This security update resolves an issue in the Jscript9.dll component that leads to an Address Space Layout Randomization (ASLR) security feature bypass. For more information about this update, see Microsoft Knowledge Base article 3034682.
Introduction
Microsoft has released security bulletin MS15-009. To learn more about 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 Support and Troubleshooting

Help protect your Windows-based computer from viruses and malware: Virus and Security Solution Center

Local support according to your country:International Support
More information

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.

For more information, see the following Microsoft Knowledge Base article:

887012 Why you may be prompted to restart your computer after you install a security update on a Windows-based computer for more information.

File information

The English (United States) 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.

Windows Vista and Windows Server 2008 file information

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
Internet Explorer 9
Internet Explorer 9 on all supported x86-based versions of Windows Vista
File nameFile versionFile sizeDateTimePlatform
Jscript.dll5.8.7601.17125717,82423-Jan-201502:51x86
Jscript9.dll9.0.8112.166201,810,94423-Jan-201503:00x86
Jscript.dll5.8.7601.20731717,82423-Jan-201502:57x86
Jscript9.dll9.0.8112.207301,810,94423-Jan-201503:06x86
Internet Explorer 9 on all supported x64-based versions of Windows Vista and Windows Server 2008 
File nameFile versionFile sizeDateTimePlatform
Jscript.dll5.8.7601.17125816,64023-Jan-201503:59x64
Jscript9.dll9.0.8112.166202,339,84023-Jan-201504:07x64
Jscript.dll5.8.7601.20731816,64023-Jan-201504:11x64
Jscript9.dll9.0.8112.207302,339,32823-Jan-201504:19x64
Jscript.dll5.8.7601.17125717,82423-Jan-201502:51x86
Jscript9.dll9.0.8112.166201,810,94423-Jan-201503:00x86
Jscript.dll5.8.7601.20731717,82423-Jan-201502:57x86
Jscript9.dll9.0.8112.207301,810,94423-Jan-201503:06x86

Windows 7 and Windows Server 2008 R2 file information

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
Internet Explorer 9
Internet Explorer 9 on all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Jscript.dll5.8.7601.17125717,82423-Jan-201502:51x86
Jscript9.dll9.0.8112.166201,810,94423-Jan-201503:00x86
Jscript.dll5.8.7601.20731717,82423-Jan-201502:57x86
Jscript9.dll9.0.8112.207301,810,94423-Jan-201503:06x86
Internet Explorer 9 on all supported x64-based versions of Windows 7 and Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Jscript.dll5.8.7601.17125816,64023-Jan-201503:59x64
Jscript9.dll9.0.8112.166202,339,84023-Jan-201504:07x64
Jscript.dll5.8.7601.20731816,64023-Jan-201504:11x64
Jscript9.dll9.0.8112.207302,339,32823-Jan-201504:19x64
Jscript.dll5.8.7601.17125717,82423-Jan-201502:51x86
Jscript9.dll9.0.8112.166201,810,94423-Jan-201503:00x86
Jscript.dll5.8.7601.20731717,82423-Jan-201502:57x86
Jscript9.dll9.0.8112.207301,810,94423-Jan-201503:06x86
Internet Explorer 10
Internet Explorer 10 on all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll10.0.9200.172412,864,64023-Jan-201504:27x86
Jscript9.dll10.0.9200.213592,868,22423-Jan-201504:26x86
Internet Explorer 10 on all supported x64-based versions of Windows 7 and Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll10.0.9200.172413,959,29623-Jan-201505:50x64
Jscript9.dll10.0.9200.213593,969,02423-Jan-201504:27x64
Jscript9.dll10.0.9200.172412,864,64023-Jan-201504:27x86
Jscript9.dll10.0.9200.213592,868,22423-Jan-201504:26x86
Internet Explorer 11
Internet Explorer 11 on all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll.mui11.0.9600.1764029,69624-Jan-201502:14Not Applicable
Jscript9.dll11.0.9600.176404,300,80023-Jan-201503:17x86
Jscript9diag.dll11.0.9600.17640620,03223-Jan-201503:43x86
Internet Explorer 11 on all supported x64-based versions of Windows 7 and Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll.mui11.0.9600.1764029,69624-Jan-201502:46Not Applicable
Jscript9.dll11.0.9600.176406,041,60023-Jan-201504:41x64
Jscript9diag.dll11.0.9600.17640814,08023-Jan-201504:42x64
Jscript9.dll11.0.9600.176404,300,80023-Jan-201503:17x86
Jscript9diag.dll11.0.9600.17640620,03223-Jan-201503:43x86
Jscript9.dll.mui11.0.9600.1764029,69624-Jan-201502:14Not Applicable

Windows 8 and Windows Server 2012 file information

Note The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.
Internet Explorer 10
Internet Explorer 10 on all supported x86-based versions of Windows 8
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll10.0.9200.172412,864,64023-Jan-201504:27x86
Jscript9.dll10.0.9200.213592,868,22423-Jan-201504:26x86
Internet Explorer 10 on all supported x64-based versions of Windows 8 and Windows Server 2012
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll10.0.9200.172413,959,29623-Jan-201505:50x64
Jscript9.dll10.0.9200.213593,969,02423-Jan-201504:27x64
Jscript9.dll10.0.9200.172412,864,64023-Jan-201504:27x86
Jscript9.dll10.0.9200.213592,868,22423-Jan-201504:26x86

Windows 8.1 and Windows Server 2012 R2 file information

Internet Explorer 11
Internet Explorer 11 on all supported x86-based versions of Windows 8.1
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll11.0.9600.176404,300,80023-Jan-201503:17x86
Jscript9diag.dll11.0.9600.17416620,03231-Oct-201403:11x86
Internet Explorer 11 on all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
File nameFile versionFile sizeDateTimePlatform
Jscript9.dll11.0.9600.176406,041,60023-Jan-201504:41x64
Jscript9diag.dll11.0.9600.17416814,08031-Oct-201404:50x64
Jscript9.dll11.0.9600.176404,300,80023-Jan-201503:17x86
Jscript9diag.dll11.0.9600.17416620,03231-Oct-201403:11x86

How to determine whether you are running a 32-bit or a 64-bit edition of Windows

If you are not sure which version of Windows that you are running or whether it is a 32-bit version or 64-bit version, open System Information (Msinfo32.exe), and review the value that is listed for System Type. To do this, follow these steps:
  1. Click Start, and then click Run, or click Start Search.
  2. Type msinfo32.exe, and then press Enter.
  3. In System Information, review the value for System Type.
    • For 32-bit editions of Windows, the System Type value is x86-based PC.
    • For 64-bit editions of Windows, the System Type value is x64-based PC.
For more information about how to determine whether you are running a 32-bit or 64-bit edition of Windows, click the following article number to view the article in the Microsoft Knowledge Base:
827218How to determine whether a computer is running a 32-bit version or a 64-bit version of the Windows operating system

Additional information about service branch

Security update 3034196 packages for Windows XP and for Windows Server 2003 include Internet Explorer hotfix files and general distribution release (GDR) files. If no existing Internet Explorer files are from the hotfix environment, security update 2936068 installs the GDR files.

Hotfixes are intended to correct only the problems that are described in the Microsoft Knowledge Base articles that are associated with the hotfixes. Apply hotfixes only to systems that are experiencing these specific problems.

These hotfixes may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains these hotfixes. For more information about how to install the hotfixes that are included in security update 2936068, click the following article number to view the article in the Microsoft Knowledge Base:
897225How to install hotfixes that are included in cumulative security updates for Internet Explorer

Note In addition to installing hotfix files, review the Microsoft Knowledge Base article that is associated with the specific hotfix that you have to install to determine the registry modification that is required to enable that specific hotfix.

For more information about how to determine whether your existing Internet Explorer files are from the hotfix or from the GDR environment, click the following article number to view the article in the Microsoft Knowledge Base:
824994Description of the contents of Windows XP Service Pack 2 and Windows Server 2003 software update packages
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated bufferoverrun overflow specially-formed scope specially-crafted denial of service dos
Properties

Article ID: 3034196 - Last Review: 02/10/2015 18:17:00 - Revision: 1.0

Internet Explorer 11, Internet Explorer 10, Windows Internet Explorer 9

  • kbexpertiseinter kbqfe kbsecurity kbsecbulletin kbsecvulnerability kbbug kbfix kbsurveynew KB3034196
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