Microsoft Security Bulletin MS16-135 - Important
Security Update for Windows Kernel-Mode Drivers (3199135)
Published: November 8, 2016 | Updated: December 13, 2016
Version: 2.0
Executive Summary
This security update resolves vulnerabilities in Microsoft Windows. The most severe of the vulnerabilities could allow elevation of privilege if an attacker logs on to an affected system and runs a specially crafted application that could exploit the vulnerabilities and take control of an affected system.
This security update is rated Important for all supported releases of Windows. For more information, see the Affected Software and Vulnerability Severity Ratings section.
The security update addresses the vulnerabilities by correcting how the Windows kernel-mode driver 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 3199135.
Affected Software and Vulnerability Severity Ratings
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 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 November bulletin summary.
**Operating System** | [**Win32k Information Disclosure Vulnerability - CVE-2016-7214**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-7214) | [**Win32k Elevation of Privilege Vulnerability - CVE-2016-7215**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-7215) | [**Windows Bowser.sys Information Disclosure Vulnerability - CVE- 2016-7218**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-7218) | [**Win32k Elevation of Privilege Vulnerability - CVE-2016-7246**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-7246) | [**Win32k Elevation of Privilege Vulnerability - CVE-2016-7255**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-7255) | Updates Replaced* | |
**Windows Vista** | |||||||
[Windows Vista Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (3198234) | **Important** Information Disclosure | **Important** Elevation of Privilege | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Vista x64 Edition Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (3198234) | **Important** Information Disclosure | **Important** Elevation of Privilege | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Vista Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3194371) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | Not applicable | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
[Windows Vista x64 Edition Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3194371) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | Not applicable | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
**Windows Server 2008** | |||||||
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (3198234) | **Important** Information Disclosure | **Important** Elevation of Privilege | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (3198234) | **Important** Information Disclosure | **Important** Elevation of Privilege | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Server 2008 for Itanium-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (3198234) | **Important** Information Disclosure | **Important** Elevation of Privilege | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3194371) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | Not applicable | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3194371) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | Not applicable | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
[Windows Server 2008 for Itanium-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3194371) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | Not applicable | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
**Windows 7** | |||||||
[Windows 7 for 32-bit Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197867) (3197867) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows 7 for 32-bit Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197868) (3197868) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185330](https://support.microsoft.com/kb/3185330) | |
[Windows 7 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197867) (3197867) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows 7 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197868) (3197868) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185330](https://support.microsoft.com/kb/3185330) | |
**Windows Server 2008 R2** | |||||||
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197867) (3197867) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197868) (3197868) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185330](https://support.microsoft.com/kb/3185330) | |
[Windows Server 2008 R2 for Itanium-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197867) (3197867) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2008 R2 for Itanium-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197868) (3197868) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185330](https://support.microsoft.com/kb/3185330) | |
**Windows 8.1** | |||||||
[Windows 8.1 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197873) (3197873) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows 8.1 for 32-bit Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197874) (3197874) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185331](https://support.microsoft.com/kb/3185331) | |
[Windows 8.1 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197873) (3197873) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows 8.1 for x64-based Systems](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197874) (3197874) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185331](https://support.microsoft.com/kb/3185331) | |
**Windows Server 2012 and Windows Server 2012 R2** | |||||||
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197876) (3197876) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197877) (3197877) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185332](https://support.microsoft.com/kb/3185332) | |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197873) (3197873) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197874) (3197874) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185331](https://support.microsoft.com/kb/3185331) | |
**Windows RT 8.1** | |||||||
Windows RT 8.1[1] (3197874) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185331](https://support.microsoft.com/kb/3185331) | |
**Windows 10** | |||||||
[Windows 10 for 32-bit Systems](https://support.microsoft.com/kb/3198585)[2] (3198585) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3192440](https://support.microsoft.com/kb/3192440) | |
[Windows 10 for x64-based Systems](https://support.microsoft.com/kb/3198585)[2] (3198585) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3192440](https://support.microsoft.com/kb/3192440) | |
[Windows 10 Version 1511 for 32-bit Systems](https://support.microsoft.com/kb/3198586)[2] (3198586) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3192441](https://support.microsoft.com/kb/3192441) | |
[Windows 10 Version 1511 for x64-based Systems](https://support.microsoft.com/kb/3198586)[2] (3198586) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3192441](https://support.microsoft.com/kb/3192441) | |
[Windows 10 Version 1607 for 32-bit Systems[2]](https://support.microsoft.com/kb/3200970) (3200970) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3194798](https://support.microsoft.com/kb/3194798) | |
[Windows 10 Version 1607 for x64-based Systems](https://support.microsoft.com/kb/3200970) [2] (3200970) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3194798](https://support.microsoft.com/kb/3194798) | |
**Windows Server 2016** | |||||||
[Windows Server 2016 for x64-based Systems](https://support.microsoft.com/kb/3200970)[2]
(3200970) |
**Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3194798](https://support.microsoft.com/kb/3194798) | |
**Server Core installation option** | |||||||
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (Server Core installation) (3198234) | **Important** Information Disclosure | **Important** Information Disclosure | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Server 2008 for 32-bit Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (Server Core installation) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | **Important** Elevation of Privilege | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (Server Core installation) (3198234) | **Important** Information Disclosure | **Important** Information Disclosure | Not applicable | Not applicable | **Important** Elevation of Privilege | 3177725 in [MS16-098](http://go.microsoft.com/fwlink/?linkid=821582) | |
[Windows Server 2008 for x64-based Systems Service Pack 2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3198234) (Server Core installation) (3194371) | Not applicable | Not applicable | **Important** Information Disclosure | Not applicable | **Important** Elevation of Privilege | 3184122 in [MS16-116](http://go.microsoft.com/fwlink/?linkid=825725) | |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197867) (Server Core installation) (3197867) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2008 R2 for x64-based Systems Service Pack 1](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197868) (Server Core installation) (3197868) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185330](https://support.microsoft.com/kb/3185330) | |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197876) (Server Core installation) (3197876) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2012](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197877) (Server Core installation) (3197877) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185332](https://support.microsoft.com/kb/3185332) | |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197873) (Server Core installation) (3197873) Security Only[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | None | |
[Windows Server 2012 R2](http://catalog.update.microsoft.com/v7/site/search.aspx?q=kb3197874) (Server Core installation) (3197874) Monthly Rollup[3] | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3185331](https://support.microsoft.com/kb/3185331) | |
[Windows Server 2016 for x64-based Systems](https://support.microsoft.com/kb/3200970) (Server Core installation) [2] (3200970) | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Information Disclosure | **Important** Elevation of Privilege | **Important** Elevation of Privilege | [3194798](https://support.microsoft.com/kb/3194798) |
[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.
*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 PackageDetails tab).
Vulnerability Information
Win32k Information Disclosure Vulnerability - CVE-2016-7214
An Information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.
To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.
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 Information Disclosure Vulnerability | CVE-2016-7214 | No | No |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Win32k Elevation of Privilege Vulnerability | CVE-2016-7215 | No | No |
Win32k Elevation of Privilege Vulnerability | CVE-2016-7246 | No | No |
Win32k Elevation of Privilege Vulnerability | CVE-2016-7255 | Yes | Yes* |
Vulnerability title | CVE number | Publicly disclosed | Exploited |
Microsoft Browser Information Disclosure Vulnerability | CVE-2016-7218 | No | No |