Microsoft Security Bulletin MS16-023 - Critical

Cumulative Security Update for Internet Explorer (3142015)

Published: March 8, 2016

Version: 1.0

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

For more information about the vulnerabilities, see the Vulnerability Information section.

For more information about this update, see Microsoft Knowledge Base Article 3142015.

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.

Operating System Component Maximum Security Impact Aggregate Severity Rating Updates Replaced*
Internet Explorer 9
Windows Vista Service Pack 2 Internet Explorer 9
(3139929)
Remote Code Execution Critical 3134814 in MS16-009
Windows Vista x64 Edition Service Pack 2 Internet Explorer 9
(3139929)
Remote Code Execution Critical 3134814 in MS16-009
Windows Server 2008 for 32-bit Systems Service Pack 2 Internet Explorer 9
(3139929)
Remote Code Execution Moderate 3134814 in MS16-009
Windows Server 2008 for x64-based Systems Service Pack 2 Internet Explorer 9
(3139929)
Remote Code Execution Moderate 3134814 in MS16-009
Internet Explorer 10
Windows Server 2012 Internet Explorer 10[1]
(3139929)
Remote Code Execution Moderate 3134814 in MS16-009
Internet Explorer 11
Windows 7 for 32-bit Systems Service Pack 1 Internet Explorer 11 (3139929) Remote Code Execution Critical 3134814 in MS16-009
Windows 7 for x64-based Systems Service Pack 1 Internet Explorer 11 (3139929) Remote Code Execution Critical 3134814 in MS16-009
Windows 8.1 for 32-bit Systems Internet Explorer 11 (3139929) Remote Code Execution Critical 3134814 in MS16-009
Windows 8.1 for x64-based Systems Internet Explorer 11 (3139929) Remote Code Execution Critical 3134814 in MS16-009
Windows Server 2008 R2 for x64-based Systems Service Pack 1 Internet Explorer 11[1]
(3139929)
Remote Code Execution Moderate 3134814 in MS16-009
Windows Server 2012 R2 Internet Explorer 11 (3139929) Remote Code Execution Moderate 3134814 in MS16-009
Windows RT 8.1 Internet Explorer 11[1] [2] (3139929) Remote Code Execution Critical 3134814 in MS16-009
Windows 10 for 32-bit Systems[3] (3140745) Internet Explorer 11 Remote Code Execution Critical 3135174
Windows 10 for x64-based Systems[3] (3140745) Internet Explorer 11 Remote Code Execution Critical 3135174
Windows 10 Version 1511 for 32-bit Systems[3] (3140768) Internet Explorer 11 Remote Code Execution Critical 3140743
Windows 10 Version 1511 for x64-based Systems[3] (3140768) Internet Explorer 11 Remote Code Execution Critical 3140743

[1] For information about changes in support for Internet Explorer beginning January 12, 2016, see Microsoft Support Lifecycle.

[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.

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 March 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-2016-0102 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-2016-0103 Internet Explorer Memory Corruption Vulnerability Not applicable Not applicable Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
Not applicable
CVE-2016-0104 Internet Explorer Memory Corruption Vulnerability Not applicable Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
Not applicable Not applicable
CVE-2016-0105 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-2016-0106 Internet Explorer Memory Corruption Vulnerability Not applicable Not applicable Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
Not applicable
CVE-2016-0107 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-2016-0108 Internet Explorer Memory Corruption Vulnerability Not applicable Not applicable Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
CVE-2016-0109 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-2016-0110 Microsoft Browser Memory Corruption Vulnerability Not applicable 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-2016-0111 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-2016-0112 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-2016-0113 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
Not applicable
CVE-2016-0114 Internet Explorer Memory Corruption Vulnerability Not applicable Not applicable Windows Clients
Critical / RCE
Windows Servers:
Moderate / RCE
Not applicable

Vulnerability Information

Multiple Internet Explorer Memory Corruption Vulnerabilities

Multiple remote code execution vulnerabilities exist when Internet Explorer improperly accesses objects in memory. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

An attacker could host a specially crafted website that is designed to exploit these vulnerabilities through Internet Explorer, and then convince a user to view the website. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements by adding specially crafted content that could exploit the vulnerabilities. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by way of enticement in an email or Instant Messenger message, or by getting them to open an attachment sent through email.

An attacker who successfully exploited these vulnerabilities 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 these vulnerabilities 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. The update addresses the vulnerabilities by modifying how Internet Explorer handles objects in memory.

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
Microsoft Browser Memory Corruption Vulnerability CVE-2016-0102 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0103 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0104 No No
Microsoft Browser Memory Corruption Vulnerability CVE-2016-0105 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0106 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0107 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0108 No No
Microsoft Browser Memory Corruption Vulnerability CVE-2016-0109 No No
Microsoft Browser Memory Corruption Vulnerability CVE-2016-0110 No No
Microsoft Browser Memory Corruption Vulnerability CVE-2016-0111 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0112 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0113 No No
Internet Explorer Memory Corruption Vulnerability CVE-2016-0114 No No

Mitigating Factors

Microsoft has not identified any mitigating factors for these vulnerabilities.

Workarounds

Microsoft has not identified any workarounds for these vulnerabilities.

Security Update Deployment

For Security Update Deployment information see the Microsoft Knowledge Base article referenced here in the Executive Summary.

Acknowledgments

Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments for more information.

Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

Revisions

  • V1.0 (March 8, 2016): Bulletin published.

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