CVE-2022-23091
Memory disclosure by stale virtual memory mapping
- State
- Published
- Severity
- 4.0 Medium
- Published
- Feb 15, 2024
- Updated
- Feb 13, 2025
- Reserved
- Jan 10, 2022
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.0 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-401 Missing Release of Memory after Effective Lifetime
Affected Products
| Product | Versions |
|---|---|
FreeBSDFreeBSD |
|
References
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