Microsoft Security Bulletin MS16-025 - Important

  • Article
  • 3 minutes to read

Security Update for Windows Library Loading to Address Remote Code Execution (3140709)

Published: March 8, 2016

Version: 1.0

Executive Summary

This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if Microsoft Windows fails to properly validate input before loading certain libraries. However, an attacker must first gain access to the local system with the ability to execute a malicious application.

This security update is rated Important for Windows Vista and Windows Server 2008. For more information, see the Affected Software section.

The security update addresses the vulnerability by correcting how Windows validates input when loading certain libraries. For more information about the vulnerability, see the Vulnerability Information section.

For more information about this update, see Microsoft Knowledge Base Article 3140709.

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 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 March bulletin summary.

**Operating System** [**Library Loading Input Validation Remote Code Execution Vulnerability - CVE-2016-0100**](http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2016-0100) **Updates Replaced**\*
**Windows Vista**
[Windows Vista Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=ed1aa4cb-967a-413e-b72f-ca66c9020177) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
[Windows Vista x64 Edition Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=484917f2-924d-4788-aaf9-f5b70b06e420) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
**Windows Server 2008**
[Windows Server 2008 for 32-bit Systems Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=bd77fc24-8ef4-4fdb-a94b-aa9a49a73dc0) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
[Windows Server 2008 for x64-based Systems Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=6477e01f-51f9-4b5e-9bbe-f0f2407b388d) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
[Windows Server 2008 for Itanium-based Systems Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=4297d789-4b4d-4982-aaa4-bb1b0b59e2a0) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
**Server Core installation option**
[Windows Server 2008 for 32-bit Systems Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=bd77fc24-8ef4-4fdb-a94b-aa9a49a73dc0) (Server Core installation) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
[Windows Server 2008 for x64-based Systems Service Pack 2](https://www.microsoft.com/download/details.aspx?familyid=6477e01f-51f9-4b5e-9bbe-f0f2407b388d) (Server Core installation) (3140709) **Important**  Remote Code Execution 2620704 in [MS11-085](http://go.microsoft.com/fwlink/?linkid=229638)
\*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](http://catalog.update.microsoft.com/v7/site/home.aspx), search for the update KB number, and then view update details (updates replaced information is provided on the Package Details tab).

Vulnerability Information

Library Loading Input Validation Remote Code Execution Vulnerability - CVE-2016-0100

A remote code execution vulnerability exists when Microsoft Windows fails to properly validate input before loading certain libraries. An attacker who successfully exploited this vulnerability could take complete 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 must first gain access to the local system and have the ability to execute a malicious application. The update corrects how Windows validates input when loading certain libraries.

The following table contains links to the standard entry for the vulnerability in the Common Vulnerabilities and Exposures list:

Vulnerability title CVE number Publicly disclosed Exploited
Library Loading Input Validation Remote Code Execution Vulnerability CVE-2016-0100 No No
### Mitigating Factors Microsoft has not identified any [mitigating factors](https://technet.microsoft.com/library/security/dn848375.aspx) for this vulnerability. ### Workarounds Microsoft has not identified any [workarounds](https://technet.microsoft.com/library/security/dn848375.aspx) for this vulnerability. Security Update Deployment -------------------------- For Security Update Deployment information, see the Microsoft Knowledge Base article referenced 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](https://technet.microsoft.com/library/security/mt674627.aspx) 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. *Page generated 2016-03-09 10:38-08:00.*