CVE-2020-7467 Privilege escalation in FreeBSD

High 7.6 Published 26 Mar 2021 Updated 4 Aug 2024

Guest virtual machines can execute AMD virtualization instructions on host physical memory, potentially leading to privilege escalation.

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

What is CVE-2020-7467?

CVE-2020-7467 is a high-severity vulnerability in Freebsd Freebsd, published on 26 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In FreeBSD 12.2-STABLE before r365767, 11.4-STABLE before r365769, 12.1-RELEASE before p10, 11.4-RELEASE before p4 and 11.3-RELEASE before p14 a number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest use of these instructions was not trapped.

Weakness: CWE-269

Which versions are affected by CVE-2020-7467?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2020-7467?

No fix has been published for CVE-2020-7467 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-7467 being exploited?

There is no known exploitation of CVE-2020-7467 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-rxhw-86vx-3h5p.