What is CVE-2022-23090?

CVE-2022-23090 is a high-severity vulnerability in Freebsd, classified under Use After Free. CVSS score: 7.7/10. Published 2024-02-15.

How severe is CVE-2022-23090?

High severity. CVSS v3 base score is 7.7 out of 10.

Is CVE-2022-23090 known to be exploited?

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

Use After Free in Freebsd

CVE-2022-23090

The aio_aqueue function, used by the lio_listio system call, fails to release a reference to a credential in an error case. An attacker may cause the reference count to overflow, leading to a use after free (UAF).

Vulnerability class: Use-After-Free

EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

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

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2022-23090?: CVE-2022-23090 is a high-severity vulnerability in Freebsd, classified under Use After Free. CVSS score: 7.7/10. Published 2024-02-15.
How severe is CVE-2022-23090?: High severity. CVSS v3 base score is 7.7 out of 10.
Is CVE-2022-23090 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.