Microsoft Security Bulletin MS16-025 - Important

• 10/11/2017
• 3 minutes to read
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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.

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: