CVE-2017-8704 Denial of service in Windows Hyper-V

Medium 5.3 Published Updated

An authenticated user in a guest OS can cause a denial of service in the Windows Hyper-V component due to improper input validation.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-8704?

CVE-2017-8704 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 13 Sep 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Windows Hyper-V component on Microsoft Windows 10 1607 and Windows Server 2016 allows a denial of service vulnerability when it fails to properly validate input from an authenticated user on a guest operating system, aka "Hyper-V Denial of Service Vulnerability".

Weakness: CWE-20

Which versions are affected by CVE-2017-8704?

It affects 2 products.

Products include Microsoft Windows 10, Microsoft Windows Server 2016.

How do I fix CVE-2017-8704?

No fix has been published for CVE-2017-8704 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-8704 being exploited?

There is no known exploitation of CVE-2017-8704 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-w8vw-xgfv-8g6r.

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