High severity · published Feb 15, 2024
CVE-2022-23085
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow
8.2
CVSS
0.5%
EPSS
No
On KEV
Description
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking 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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
12.0 before 12.3; 12.3; 12.3; 12.3; 12.3; 12.3; +22 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23085
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23085
Vendor Advisory
https://security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240322-0004/
More from Freebsd
10.0
CVE-2024-43102
umtx Kernel panic or Use-After-Free
10.0
CVE-2018-17160
In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to…
9.8
CVE-2026-101306
Multiple jail filesystem root escapes
9.8
CVE-2026-58082
Stack based buffer overflow in iconv(3)
9.8
CVE-2026-58081
Heap based buffer overflow in iconv(3)