CVE-2018-6982 Information disclosure in VMware ESXi

Medium 6.5 Published 4 Dec 2018 Updated 5 Aug 2024

Uninitialized stack memory in the vmxnet3 adapter allows guest VMs to leak host memory information, requiring a patch for ESXi administrators.

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-2018-6982?

CVE-2018-6982 is a medium-severity vulnerability in Vmware Esxi, published on 4 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

VMware ESXi 6.7 without ESXi670-201811401-BG and VMware ESXi 6.5 without ESXi650-201811301-BG contain uninitialized stack memory usage in the vmxnet3 virtual network adapter which may lead to an information leak from host to guest.

Weakness: CWE-908

Which versions are affected by CVE-2018-6982?

It affects 3 products.

Products include Vmware Esxi, Vmware Fusion, Vmware Workstation.

How do I fix CVE-2018-6982?

No fix has been published for CVE-2018-6982 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-6982 being exploited?

There is no known exploitation of CVE-2018-6982 in the wild and no public exploit code.

All Vmware Esxi vulnerabilities

Sources

Also known as GHSA-pwjr-88cq-mmr3.