CVE-2023-4012

Incomplete Internal State Distinction in ntpsec

Description

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

Remediation

Solution:

  • Upgrade to version 1.2.2a or 1.2.3

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.23%
Vendor Advisory gitlab.com
Affected: NTPsec ntpsec
Published at:
Updated at:

References

Link Tags
https://gitlab.com/NTPsec/ntpsec/-/issues/794 vendor advisory issue tracking
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1038422 third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-4012?
CVE-2023-4012 has been scored as a high severity vulnerability.
How to fix CVE-2023-4012?
To fix CVE-2023-4012: Upgrade to version 1.2.2a or 1.2.3
Is CVE-2023-4012 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-4012 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-4012?
CVE-2023-4012 affects NTPsec ntpsec.
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