Vulnerability in Windows Graphics Component Could Allow Elevation of Privilege (3069392)
Published: July 14, 2015
Version: 1.0
Executive Summary
This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow elevation of privilege if the Windows graphics component fails to properly process bitmap conversions. An authenticated attacker who successfully exploited this vulnerability could elevate privileges on a targeted system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights. An attacker must first log on to the system to exploit this vulnerability.
This security update is rated Important for all supported releases of Windows. For more information, see the Affected Software section.
The security update addresses the vulnerability by correcting how Windows processes bitmap conversions. For more information about the vulnerability, see the Vulnerability Information section.
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*The Updates Replaced column shows only the latest update in a chain of superseded updates.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 on the Package Details tab).
Severity Ratings and Vulnerability Identifiers
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 July bulletin summary.
Vulnerability Severity Rating and Maximum Security Impact by Affected Software
An elevation of privilege vulnerability exists in the Windows graphics component when it fails to properly process bitmap conversions. An authenticated attacker who successfully exploited this vulnerability could elevate privileges on a targeted system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights.
To exploit the vulnerability, an attacker must first log on to the system. An attacker could then run a specially crafted application that is designed to increase privileges. The update addresses the vulnerability by correcting how Windows processes bitmap conversions.
Microsoft received information about this vulnerability through coordinated vulnerability disclosure. When this security bulletin was originally issued Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers.
Mitigating Factors
Microsoft has not identified any mitigating factors for this vulnerability.
Workarounds
Microsoft has not identified any workarounds for this vulnerability.
Acknowledgments
Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgments 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.
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