Microsoft Security Bulletin MS16-124 - Important

Security Update for Windows Registry (3193227)

Published: October 11, 2016 | Updated: December 13, 2016

Version: 2.0

This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker can access sensitive registry information.

This security update is rated Important for all supported releases of Microsoft Windows. For more information, see the Affected Software and Vulnerability Severity Ratings section.

The security update addresses the vulnerabilities by correcting how the kernel API restricts access to this information.

For more information about the vulnerabilities, see the Vulnerability Information section. For more information about this update, see Microsoft Knowledge Base Article 3193227.

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.

The severity ratings indicated for each affected software 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 October bulletin summary.

Operating System

Windows Kernel Local Elevation of Privilege Vulnerability - CVE-2016-0070

Windows Kernel Local Elevation of Privilege Vulnerability - CVE-2016-0073

Windows Kernel Local Elevation of Privilege Vulnerability - CVE-2016-0075

Windows Kernel Local Elevation of Privilege Vulnerability - CVE-2016-0079

Updates Replaced*

Windows Vista

Windows Vista Service Pack 2
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Vista x64 Edition Service Pack 2
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008

Windows Server 2008 for 32-bit Systems Service Pack 2
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 for x64-based Systems Service Pack 2
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 for Itanium-based Systems Service Pack 2
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows 7

Windows 7 for 32-bit Systems Service Pack 1
(3192391)
Security Only[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows 7 for 32-bit Systems Service Pack 1
(3185330)
Monthly Rollup[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows 7 for x64-based Systems Service Pack 1
(3192391)
Security Only[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows 7 for x64-based Systems Service Pack 1
(3185330)
Monthly Rollup[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 R2

Windows Server 2008 R2 for x64-based Systems Service Pack 1
(3192391)
Security Only[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 R2 for x64-based Systems Service Pack 1
(3185330)
Monthly Rollup[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
(3192391)
Security Only[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
(3185330)
Monthly Rollup[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows 8.1

Windows 8.1 for 32-bit Systems
(3192392)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows 8.1 for 32-bit Systems
(3185331)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows 8.1 for x64-based Systems
(3192392)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows 8.1 for x64-based Systems
(3185331)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 and Windows Server 2012 R2

Windows Server 2012
(3192393)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012
(3185332)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 R2
(3192392)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 R2
(3185331)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows RT 8.1

Windows RT 8.1[1]
(3185331)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows 10

Windows 10 for 32-bit Systems [2]
(3192440)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3185611

Windows 10 for x64-based Systems [2]
(3192440)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3185611

Windows 10 Version 1511 for 32-bit Systems [2]
(3192441)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3185614

Windows 10 Version 1511 for x64-based Systems [2]
(3192441)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3185614

Windows 10 Version 1607 for 32-bit Systems [2]
(3194798)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3189866

Windows 10 Version 1607 for x64-based Systems [2]
(3194798)

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important
Elevation of Privilege

3189866

Server Core installation option

Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3177725 in MS16-098

Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
(3191256)

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3177725 in MS16-098

Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
(3192391)
Security Only[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
(3185330)
Monthly Rollup[3]

Important 
Elevation of Privilege

Not applicable

Not applicable

Not applicable

3175024 in MS16-111

Windows Server 2012 (Server Core installation)
(3192393)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 (Server (3185332)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 R2 (Server Core installation)
(3192392)
Security Only[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

Windows Server 2012 R2 (Server Core installation)
(3185331)
Monthly Rollup[3]

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Important 
Elevation of Privilege

Not applicable

3185319 in MS16-104

[1]This update is only available via Windows Update.

[2]Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the Microsoft Update Catalog.

[3]Beginning with the October 2016 release, Microsoft is changing the update servicing model for Windows 7, Windows Server 2008 R2, Windows 8.1, Windows Server 2012, and Windows Server 2012 R2. For more information, please see this Microsoft TechNet article.

Note The vulnerabilities discussed in this bulletin affect Windows Server 2016 Technical Preview 5. To be protected from the vulnerabilities, Microsoft recommends that customers running this operating system apply the current update, which is available from 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).

Multiple Windows Kernel Local Elevation of Privilege Vulnerabilities

Multiple elevation of privilege vulnerabilities exist in Microsoft Windows when a Windows kernel API improperly allows a user to access sensitive registry information. To exploit the vulnerabilities, a locally authenticated attacker would need to run a specially crafted application.

An attacker who uses this method could then gain access to information not intended to be available to the user. The security update addresses the vulnerabilities by correcting how the kernel API restricts access to this information.

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

Windows Kernel Local Elevation of Privilege Vulnerability

CVE-2016-0070

No

No

Windows Kernel Local Elevation of Privilege Vulnerability

CVE-2016-0073

No

No

Windows Kernel Local Elevation of Privilege Vulnerability

CVE-2016-0075

No

No

Windows Kernel Local Elevation of Privilege Vulnerability

CVE-2016-0079

No

No

Mitigating Factors

Microsoft has not identified any mitigating factor for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for these vulnerabilities.

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

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

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.

  • V1.0 (October 11, 2016): Bulletin published.
  • V2.0 (December 13, 2016): Revised bulletin to announce the following updates have been rereleased with a detection change that addresses a supersedence issue that certain customers experienced when attempting to install the October Security Only updates.

    These are detection changes only. There were no changes to the update files. Customers who have already successfully installed any of these updates do not need to take any action. For more information, see the Microsoft Knowledge Base article for the respective update.

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