CVE-2022-23084
HIGHFreeBSD 12.0-12.2 - Kernel Memory Corruption via netmap nmreq_copyin TOCTOU
Title source: llmDescription
The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption. On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240419-0003/
Scores
CVSS v3
7.5
EPSS
0.0005
EPSS Percentile
15.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-367
Status
published
Products (3)
freebsd/freebsd
12.3 (5 CPE variants)
freebsd/freebsd
13.0 (22 CPE variants)
freebsd/freebsd
12.0 - 12.3
Published
Feb 15, 2024
Tracked Since
Feb 18, 2026