VULNERABILITY INTELLIGENCE
CVE-2022-23091
CVSS score4 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2024-02-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
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, allowing that process to read private data belonging to other processes or the kernel.
Weakness classification
- CWE-401: Missing Release of Memory after Effective Lifetime
Primary references
- secteam@freebsd.org — Vendor Advisory
- secteam@freebsd.org — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory