CVE-2020-3999 Denial of service in VMware ESXi, VMware Workstation,VMware Fusion and VMware Cloud Foundation
A malicious user with access to a virtual machine can crash the vmx process, causing a denial of service in VMware virtualization products.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3999?
CVE-2020-3999 is a medium-severity denial of service vulnerability in Vmware Esxi, published on 21 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
VMware ESXi (7.0 prior to ESXi70U1c-17325551), VMware Workstation (16.x prior to 16.0 and 15.x prior to 15.5.7), VMware Fusion (12.x prior to 12.0 and 11.x prior to 11.5.7) and VMware Cloud Foundation contain a denial of service vulnerability due to improper input validation in GuestInfo. A malicious actor with normal user privilege access to a virtual machine can crash the virtual machine's vmx process leading to a denial of service condition.
Weakness: CWE-20
Which versions are affected by CVE-2020-3999?
It affects 3 products.
Products include Vmware Esxi, Vmware Fusion, Vmware Workstation.
How do I fix CVE-2020-3999?
No fix has been published for CVE-2020-3999 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-2020-3999 being exploited?
There is no known exploitation of CVE-2020-3999 in the wild and no public exploit code.
Other vulnerabilities in Vmware Esxi
Sources
Also known as GHSA-x697-2xrm-fh6r.