Vulnerability in Ntpsec

CVE-2023-4012

ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3).

EPSS: 0.002 (43.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ntpsec — versions 1.2.2

Weakness classification (CWE)

CWE-372

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

GitLab Issue #794 (issue-tracking)
bugs.debian.org/cgi-bin/bugreport.cgi (broken-link)

Frequently asked questions

What is CVE-2023-4012?: CVE-2023-4012 is a high-severity vulnerability in Ntpsec, classified under CWE-372. CVSS score: 7.5/10. Published 2023-08-07.
How severe is CVE-2023-4012?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-4012 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.