CVE-2022-23091: Freebsd

Medium severity, CVSS 4.0. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Freebsd Freebsd: before 12.3 (fixed in 12.3); version 12.3 only; version 13.0 only; version 13.1 only

Published 2024-02-15. Last modified 2026-06-17.