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

EPSS: 0.003 (17.5th percentile) — read the EPSS interpretation.

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.

Affected products

  • Freebsd — versions 11.3, 11.4, 12.1
  • N/a 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.