CVE-2023-4012 The advisory has been revoked - it doesn't affect any version of package ntpsec (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UBUNTU2204-NTPSEC-5821151
- published24 Mar 2025
- disclosed7 Aug 2023
Introduced: 7 Aug 2023
CVE-2023-4012 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:22.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ntpsec package and not the ntpsec package as distributed by Ubuntu.
ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3).
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2023-4012
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OC2KDNL4GO7MDAFSNWBQA4T2Q2VNPUJD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VQDOZSTH2AZXBO2QAVR2SZEMK2A7WBRB/
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1038422
- https://gitlab.com/NTPsec/ntpsec/-/issues/794