Microsoft Security Bulletin MS16-018 - Important

Security Update for Windows Kernel-Mode Drivers to Address Elevation of Privilege (3136082)

Published: February 9, 2016 | Updated: February 24, 2016

Version: 1.1

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application.

This security update is rated Important for all supported editions of Windows. For more information, see the Affected Software section.

The security update addresses the vulnerability by correcting how the Windows Kernel-mode driver handles objects in memory. For more information about the vulnerability, see the Vulnerability Information section.

For more information about this update, see Microsoft Knowledge Base Article 3136082.

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 February bulletin summary.

Operating System

Win32k Elevation of Privilege Vulnerability - CVE-2016-0048

Updates Replaced*  

Windows Vista

Windows Vista Service Pack 2
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Vista x64 Edition Service Pack 2
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008

Windows Server 2008 for 32-bit Systems Service Pack 2
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 for x64-based Systems Service Pack 2
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 for Itanium-based Systems Service Pack 2
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows 7

Windows 7 for 32-bit Systems Service Pack 1
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows 7 for x64-based Systems Service Pack 1
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 R2

Windows Server 2008 R2 for x64-based Systems Service Pack 1
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows 8.1

Windows 8.1 for 32-bit Systems
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows 8.1 for x64-based Systems
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2012 and Windows Server 2012 R2

Windows Server 2012
(3134214)

Important 
Elevation of Privilege

3124001 in MS16-005

Windows Server 2012 R2
(3134214)

Important 
Elevation of Privilege

3124001 in MS16-005

Windows RT 8.1

Windows RT 8.1[1]
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows 10

Windows 10 for 32-bit Systems [2]
(3135174)

Important 
Elevation of Privilege

3124266

Windows 10 for x64-based Systems [2]
(3135174)

Important 
Elevation of Privilege

3124266

Windows 10 Version 1511 for 32-bit Systems [2]
(3135173)

Important 
Elevation of Privilege

3124263

Windows 10 Version 1511 for x64-based Systems [2]
(3135173)

Important 
Elevation of Privilege

3124263

Server Core installation option

Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
(3134214)

Important 
Elevation of Privilege

3124000 in MS16-005

Windows Server 2012 (Server Core installation)
(3134214)

Important 
Elevation of Privilege

3124001 in MS16-005

Windows Server 2012 R2 (Server Core installation)
(3134214)

Important 
Elevation of Privilege

3124001 in MS16-005

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

[2]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 update is available via the Windows 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).

Win32k Elevation of Privilege Vulnerability - CVE-2016-0048

An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The update addresses this vulnerability by correcting how the Windows kernel-mode driver 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

Win32k Elevation of Privilege Vulnerability

CVE-2016-0048

No

No

Mitigating Factors

Microsoft has not identified any mitigating factors for this vulnerability.

Workarounds

Microsoft has not identified any workarounds for this vulnerability.

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 (February 9, 2016): Bulletin published.
  • V1.1 (February 24, 2016): Corrected the Updates Replaced for Windows Server 2012 and Windows Server 2012 R2 to 3124001 in MS16-005. This is an informational change only.

Page generated 2016-02-24 13:54-08:00.
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