Medium severity · published Feb 15, 2024
CVE-2022-23091
Memory disclosure by stale virtual memory mapping
4.0
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeBSD · FreeBSD
13.1-RELEASE before p1; 13.0-RELEASE before p12; 12.3-RELEASE before p6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23091
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23091
Vendor Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-22:11.vm.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240415-0008/
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