MS11-018: Cumulative security update for Internet Explorer: April 12, 2011

The update that this article describes has been replaced by a newer update. To resolve this problem, install the most current cumulative security update for Internet Explorer. To install the most current update, visit the following Microsoft website:For more technical information about the most current cumulative security update for Internet Explorer, visit the following Microsoft website:
INTRODUCTION
Microsoft has released security bulletin MS11-018. To view the complete security bulletin, visit 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

MORE INFORMATION

Non-security-related fixes that are included in this security update

General distribution release (GDR) fixes

Individual updates may not be installed depending on the version of Windows and the version of the affected application. Please view the individual articles to determine your update status.
Article numberArticle title
2510633SECURITY: Navigate/Navigate2() methods re-add HTTP headers to redirected requests, leading to cross-domain header sends
982081The Onload event is incorrectly fired when you click the Back button in Internet Explorer 8
2329008A webpage flickers or blinks in Internet Explorer 8 on a computer that uses hybrid graphics
2276826Permission Denied error in res://ieframe.dll/preview.js when printing
2514645The connection times out when you use Internet Explorer 8 to open a webpage that redirects a POST request to an SSL-secured site

Hotfixes

Security update 2497640 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 2497640 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 2497640, 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

NoteIn 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
FILE INFORMATION
For a list of files that are provided within these packages, click the following link:

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
update security_patch security_update security bug flaw vulnerability malicious attacker exploit registry unauthenticated buffer overrun overflow specially-formed scope specially-crafted denial of service DoS TSE
Properties

Article ID: 2497640 - Last Review: 05/11/2012 21:07:00 - Revision: 4.0

Windows Internet Explorer 8, Windows Internet Explorer 7, Microsoft Internet Explorer 6.0

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