CWE
119 369 476 674
Advisory Published
Updated

CVE-2017-8542: Buffer Overflow

First published: Fri May 26 2017(Updated: )

The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to denial of service. aka "Microsoft Malware Protection Engine Denial of Service Vulnerability", a different vulnerability than CVE-2017-8535, CVE-2017-8536, CVE-2017-8537, and CVE-2017-8539.

Credit: secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
Microsoft Forefront Security for SharePoint
Microsoft Malware Protection Engine<=1.1.13704.0
Microsoft Windows Defender
Microsoft Exchange Server=2013
Microsoft Exchange Server=2016
Microsoft Windows 10
Microsoft Windows 10=1511
Microsoft Windows 10=1607
Microsoft Windows 10=1703
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows RT
Microsoft Windows Server 2008 Itanium=sp2
Microsoft Windows Server 2008 Itanium=r2-sp1
Microsoft Windows Server 2012 x64
Microsoft Windows Server 2012 x64=r2
Microsoft Windows Server 2016

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Frequently Asked Questions

  • What is the severity of CVE-2017-8542?

    CVE-2017-8542 has a severity rating of important as it allows remote code execution through the exploitation of the Microsoft Malware Protection Engine.

  • How do I fix CVE-2017-8542?

    You can mitigate CVE-2017-8542 by updating your Microsoft Malware Protection Engine to version 1.1.13704.0 or later.

  • Which systems are vulnerable to CVE-2017-8542?

    CVE-2017-8542 affects multiple Microsoft products including Forefront, Windows Defender, and various versions of Windows operating systems.

  • What happens if CVE-2017-8542 is exploited?

    If exploited, CVE-2017-8542 allows attackers to execute arbitrary code on the affected system, potentially compromising its security.

  • Is there a workaround for CVE-2017-8542?

    While the primary fix for CVE-2017-8542 is to update the malware protection engine, ensuring proper system configurations and user permissions can help mitigate exploitation.

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