What is CVE-2022-23091?

CVE-2022-23091 is a medium-severity vulnerability in Freebsd, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 4.0/10. Published 2024-02-15.

How severe is CVE-2022-23091?

Medium severity. CVSS v3 base score is 4.0 out of 10.

Is CVE-2022-23091 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Freebsd

CVE-2022-23091

A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm, but with a different root cause. An unprivileged local user process can maintain a mapping of a page after it is freed…

EPSS: 0.002 (7.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Freebsd — versions 13.1, 12.3-RELEASE, 13.0-RELEASE

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

secteam@freebsd.org (vendor-advisory, Vendor Advisory)
secteam@freebsd.org (Third Party Advisory)

Frequently asked questions

What is CVE-2022-23091?: CVE-2022-23091 is a medium-severity vulnerability in Freebsd, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 4.0/10. Published 2024-02-15.
How severe is CVE-2022-23091?: Medium severity. CVSS v3 base score is 4.0 out of 10.
Is CVE-2022-23091 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.