CVE-2023-4012 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.002.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

NTPsec

ntpsec

unaffected

Version	Status	Constraints
`1.2.2`	affected	—

Configuration 1 [-]

cpe:2.3:a:ntpsec:ntpsec:1.2.2:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors	Products
Ntpsec Subscribe	Ntpsec Subscribe

Advisories

Source	ID	Title
Debian DSA	DSA-5466-1	ntpsec security update
EUVD	EUVD-2023-53905	ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3).

Fixes

Solution

Upgrade to version 1.2.2a or 1.2.3

Workaround

No workaround given by the vendor.

References

Link	Providers
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1038422
https://gitlab.com/NTPsec/ntpsec/-/issues/794

History

Mon, 11 May 2026 05:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GitLab

Published: 2023-08-07T17:30:33.452Z

Updated: 2026-05-12T04:05:27.344Z

Reserved: 2023-07-31T09:01:28.128Z

Link: CVE-2023-4012

Vulnrichment

Updated: 2024-08-02T07:17:11.104Z

NVD

Status : Modified

Published: 2023-08-07T18:15:10.190

Modified: 2024-11-21T08:34:13.667

Link: CVE-2023-4012

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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