CVE-2017-8623 Denial of service in Windows Hyper-V
A privileged user in a guest OS can cause a denial of service in Windows Hyper-V by sending improperly validated input.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-8623?
CVE-2017-8623 is a medium-severity denial of service vulnerability in Microsoft Windows 10, published on 8 Aug 2017. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Windows Hyper-V in Windows 10 1607, 1703, and Windows Server 2016 allows a denial of service vulnerability when it fails to properly validate input from a privileged user on a guest operating system, aka "Windows Hyper-V Denial of Service Vulnerability".
Weakness: CWE-20
Which versions are affected by CVE-2017-8623?
It affects 2 products.
Products include Microsoft Windows 10, Microsoft Windows Server 2016.
How do I fix CVE-2017-8623?
No fix has been published for CVE-2017-8623 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-2017-8623 being exploited?
There is no known exploitation of CVE-2017-8623 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows 10
- CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution
- CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation
- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-489m-whxp-jmqr.