Buffer overflow in FreeBSD
CVE-2022-23085
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- FreeBSD — versions 13.1-RC1, 12.3-RELEASE, 13.0-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.freebsd.org/advisories/FreeBSD-SA-22:04.netmap.asc (vendor-advisory, Vendor Advisory)
- security.netapp.com/advisory/ntap-20240322-0004/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23085?
- CVE-2022-23085 is a high-severity vulnerability in FreeBSD, classified under Out-of-bounds Write. CVSS score: 8.2/10. Published 2024-02-15.
- How severe is CVE-2022-23085?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2022-23085 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.