CVE-2022-23091 json
Memory disclosure by stale virtual memory mapping
published 2y ago modified 4mo ago also EUVD-2022-28196
- cvss
- 4.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 6%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- FreeBSD FreeBSD p1, p6, p12
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.0 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| CNA | 3.1 | 4.0 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- FreeBSD FreeBSD
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
-
security.freebsd.org
/advisories/FreeBSD-SA-22:11.vm.asc
vendor-advisory
-
security.netapp.com
/advisory/ntap-20240415-0008/
third-party-advisory
Sources
- CVE List CVE-2022-23091
- NVD CVE-2022-23091
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