Microsoft Security Bulletin MS16-009 - Critical
Cumulative Security Update for Internet Explorer (3134220)
Published: February 9, 2016 | Updated: February 19, 2016
Version: 1.1
Executive Summary
This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
This security update is rated Critical for Internet Explorer 9 (IE 9), and Internet Explorer 11 (IE 11) on affected Windows clients, and Moderate for Internet Explorer 9 (IE 9), Internet Explorer 10 (IE 10), and Internet Explorer 11 (IE 11) on affected Windows servers. For more information, see the Affected Software section.
The security update addresses the vulnerabilities by:
- Modifying how Internet Explorer handles objects in memory
- Helping to ensure that cross-domain policies are properly enforced in Internet Explorer
- Correcting how Internet Explorer OLE validates input on library load
- Correcting how Internet Explorer parses HTTP responses
For more information about the vulnerabilities, see the Vulnerability Information section.
For more information about this update, see Microsoft Knowledge Base Article 3134220.
Affected Software
The following software versions or editions are affected. Versions or editions that are not listed are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, see Microsoft Support Lifecycle.
Affected Software
**Operating System** | **Component** | **Maximum Security Impact** | **Aggregate Severity Rating** | **Updates Replaced**\* | |
**Internet Explorer 9** | |||||
Windows Vista Service Pack 2 | [Internet Explorer 9](https://www.microsoft.com/download/details.aspx?familyid=9cdf499b-4588-4457-afe8-6b947e5b568e) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Vista x64 Edition Service Pack 2 | [Internet Explorer 9](https://www.microsoft.com/download/details.aspx?familyid=7cabd0e0-cd21-4686-afae-b23976e8d9bf) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Server 2008 for 32-bit Systems Service Pack 2 | [Internet Explorer 9](https://www.microsoft.com/download/details.aspx?familyid=6c1c2566-3086-49aa-9cd9-fc11b7dfb813) (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Server 2008 for x64-based Systems Service Pack 2 | [Internet Explorer 9](https://www.microsoft.com/download/details.aspx?familyid=96ce1cae-126a-46df-99b7-8d165228654f) (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
**Internet Explorer 10** | |||||
Windows Server 2012 | [Internet Explorer 10](https://www.microsoft.com/download/details.aspx?familyid=1e906b0c-ca78-44c0-992f-c931ca31f85b)[1] (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
**Internet Explorer 11** | |||||
Windows 7 for 32-bit Systems Service Pack 1 | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=f3635a86-813a-4bf7-932c-c00a5cb4bfef) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows 7 for x64-based Systems Service Pack 1 | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=d81accb1-3fb2-45c7-b71c-7f81aec41c5a) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows 8.1 for 32-bit Systems | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=4fa076ad-45de-4acc-ac25-1e7af0a3e9c3) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows 8.1 for x64-based Systems | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=b07343e0-d7ca-4723-bf67-29df5a5590cd) (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Server 2008 R2 for x64-based Systems Service Pack 1 | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=a1141079-a6c2-40cb-8ac6-efd39af165cf)[1] (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Server 2008 R2 for Itanium-based Systems Service Pack 2 | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=a1141079-a6c2-40cb-8ac6-efd39af165cf)[1] (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows Server 2012 R2 | [Internet Explorer 11](https://www.microsoft.com/download/details.aspx?familyid=8d869c75-a450-4a01-8be9-4554ef6866bd) (3134814) | Remote Code Execution | Moderate | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
Windows RT 8.1 | Internet Explorer 11[1] [2] (3134814) | Remote Code Execution | Critical | 3124275 in [MS16-001](http://go.microsoft.com/fwlink/?linkid=717999) | |
[Windows 10 for 32-bit Systems](https://support.microsoft.com/kb/3135174)[3] (3135174) | Internet Explorer 11 | Remote Code Execution | Critical | [3124266](https://support.microsoft.com/kb/3124266) | |
[Windows 10 for x64-based Systems](https://support.microsoft.com/kb/3135174)[3] (3135174) | Internet Explorer 11 | Remote Code Execution | Critical | [3124266](https://support.microsoft.com/kb/3124266) | |
[Windows 10 Version 1511 for 32-bit Systems](https://support.microsoft.com/kb/3135173)[3] (3135173) | Internet Explorer 11 | Remote Code Execution | Critical | [3124263](https://support.microsoft.com/kb/3124263) | |
[Windows 10 Version 1511 for x64-based Systems](https://support.microsoft.com/kb/3135173)[3] (3135173) | Internet Explorer 11 | Remote Code Execution | Critical | [3124263](https://support.microsoft.com/kb/3124263) |
[2] This update is available via Windows Update.
[3] Windows 10 updates are cumulative. In addition to containing non-security updates, they also contain all of the security fixes for all of the Windows 10-affected vulnerabilities shipping with the monthly security release. The updates are available via the Microsoft Update Catalog.
Note Windows Server Technical Preview 4 is affected. Customers running these operating systems are encouraged to apply the update, which is available via Windows Update.
*The Updates Replaced column shows only the latest update in any chain of superseded updates. For a comprehensive list of updates replaced, go to the Microsoft Update Catalog, search for the update KB number, and then view update details (updates replaced information is provided on the Package Details tab).
Update FAQ
Does this update contain any additional security-related changes to functionality?
In addition to the changes that are listed for the vulnerabilities described in this bulletin, this update includes defense-in-depth updates to help improve security-related features.
I am running Internet Explorer 11. Are there additional updates I should be aware of?
Yes. For Internet Explorer 11, to be fully protected from the vulnerabilities described in this bulletin, customers must also install update 3141092. Microsoft recommends to first install update 3134814, and then install update 3141092. For more information about the 3141092 update, see Microsoft Knowledge Base Article 3141092.
Severity Ratings and Vulnerability Identifiers
The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the February bulletin summary.
Where specified in the Severity Ratings and Impact table, Critical, Important, and Moderate values indicate severity ratings. For more information, see Security Bulletin Severity Rating System. Refer to the following key for the abbreviations used in the table to indicate maximum impact:
Abbreviation | Maximum Impact |
RCE | Remote Code Execution |
EoP | Elevation of Privilege |
ID | Information Disclosure |
SFB | Security Feature Bypass |
**Vulnerability Severity Ratings and Impact** | |||||
**CVE number** | **Vulnerability title** | **Internet Explorer 9** | **Internet Explorer 10** | **Internet Explorer 11** | **Internet Explorer 11 on Windows 10** |
[CVE-2016-0041](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0041) | DLL Loading Remote Code Execution Vulnerability | Not applicable |
Windows Clients
**Important / RCE** Windows Servers: **Low / RCE** |
Windows Clients
**Important / RCE** Windows Servers: **Low / RCE** |
Windows Clients
**Important / RCE** Windows Servers: **Low / RCE** |
[CVE-2016-0059](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0059) | Internet Explorer Information Disclosure Vulnerability |
Windows Clients:
**Important / ID** Windows Servers: **Low / ID** |
Windows Clients:
**Important / ID** Windows Servers: **Low / ID** |
Windows Clients:
**Important / ID** Windows Servers: **Low / ID** |
Windows Clients:
**Important / ID** Windows Servers: **Low / ID** |
[CVE-2016-0060](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0060) | Microsoft Browser Memory Corruption Vulnerability |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0061](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0061) | Microsoft Browser Memory Corruption Vulnerability |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0062](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0062) | Microsoft Browser Memory Corruption Vulnerability | Not applicable | Not applicable |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0063](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0063) | Internet Explorer Memory Corruption Vulnerability |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0064](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0064) | Internet Explorer Memory Corruption Vulnerability | Not applicable |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Not applicable | Not applicable |
[CVE-2016-0067](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0067) | Internet Explorer Memory Corruption Vulnerability |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0068](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0068) | Internet Explorer Elevation of Privilege Vulnerability | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** |
[CVE-2016-0069](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0069) | Internet Explorer Elevation of Privilege Vulnerability | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** | Windows Clients: **Important / EoP** Windows Servers: **Low / EoP** |
[CVE-2016-0071](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0071) | Internet Explorer Memory Corruption Vulnerability |
Windows Clients
**Important / RCE** Windows Servers: **Low / RCE** |
Not applicable | Not applicable | Not applicable |
[CVE-2016-0072](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0072) | Internet Explorer Memory Corruption Vulnerability |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
Windows Clients
**Critical / RCE** Windows Servers: **Moderate / RCE** |
[CVE-2016-0077](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0077%22%20\t%20%22_top) | Microsoft Browser Spoofing Vulnerability | Windows Clients **Moderate / Spoofing** Windows Servers: **Low / Spoofing** | Windows Clients **Moderate / Spoofing** Windows Servers: **Low / Spoofing** | Windows Clients **Moderate / Spoofing** Windows Servers: **Low / Spoofing** | Windows Clients **Moderate / Spoofing** Windows Servers: **Low / Spoofing** |
DLL Loading Remote Code Execution Vulnerability - CVE-2016-0041
A remote code execution vulnerability exists when Internet Explorer improperly validates input before loading dynamic link library (DLL) files. An attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
To exploit the vulnerability, an attacker would first have to log on to the target system and then run a specially crafted application. The updates address the vulnerabilities by correcting how Internet Explorer validates input before loading DLL files.
The following table contains links to the standard entry for each vulnerability in the Common Vulnerabilities and Exposures list:
Vulnerability title | CVE number | Publicly disclosed | Exploited |
DLL Loading Remote Code Execution Vulnerability | CVE-2016-0041 | No | No |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Internet Explorer Information Disclosure Vulnerability | CVE-2016-0059 | No | No |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Microsoft Browser Memory Corruption Vulnerability | CVE-2016-0060 | No | No |
Microsoft Browser Memory Corruption Vulnerability | CVE-2016-0061 | No | No |
Microsoft Browser Memory Corruption Vulnerability | CVE-2016-0062 | No | No |
Internet Explorer Memory Corruption Vulnerability | CVE-2016-0063 | No | No |
Internet Explorer Memory Corruption Vulnerability | CVE-2016-0064 | No | No |
Internet Explorer Memory Corruption Vulnerability | CVE-2016-0067 | No | No |
Internet Explorer Memory Corruption Vulnerability | CVE-2016-0071 | No | No |
Internet Explorer Memory Corruption Vulnerability | CVE-2016-0072 | No | No |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Microsoft Browser Spoofing Vulnerability | CVE-2016-0077 | No | No |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Internet Explorer Elevation of Privilege Vulnerability | CVE-2016-0068 | No | No |
Internet Explorer Elevation of Privilege Vulnerability | CVE-2016-0069 | No | No |