Out-of-bounds Read in FreeBSD
CVE-2022-23089
When dumping core and saving process information, proc_getargv() might return an sbuf which have a sbuf_len() of 0 or -1, which is not properly handled. An out-of-bound read can happen when user constructs a specially crafted ps_string, which in turn can cause the kernel to crash.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- FreeBSD — versions 13.1, 12.3-RELEASE, 13.0-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.freebsd.org/advisories/FreeBSD-SA-22:09.elf.asc (vendor-advisory, Vendor Advisory)
- security.netapp.com/advisory/ntap-20240415-0006/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23089?
- CVE-2022-23089 is a medium-severity vulnerability in FreeBSD, classified under Out-of-bounds Read. CVSS score: 4.7/10. Published 2024-02-15.
- How severe is CVE-2022-23089?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2022-23089 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.