Privilege escalation in FreeBSD

CVE-2020-7467

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.

Vulnerability class: Privilege Escalation

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-7467: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • FreeBSD — versions 11.3, 11.4, 12.1
  • FreeBSD — versions FreeBSD 12.1-RELEASE before p10, 11.4-RELEASE before p4, 11.3-RELEASE before p14

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-7467?
CVE-2020-7467 is a high-severity vulnerability in FreeBSD, classified under Improper Privilege Management. CVSS score: 7.6/10. Published 2021-03-26.
How severe is CVE-2020-7467?
High severity. CVSS v3 base score is 7.6 out of 10.