Is CVE-2023-4012 in the CISA KEV catalog?

No. CVE-2023-4012 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-4012?

CVE-2023-4012 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-4012?

CVE-2023-4012 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-4012?

Upgrade ntpsec on debian 12 to 1.2.2+dfsg1-1+deb12u1 or later.

CVE & CISA-KEV Catalog

CVE-2023-4012

HIGH

7.5

CVSS v3

NVD

Description

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

CWE-372

How to fix

Remediation Available

ntpsecDebian

Fixed in:1.2.2+dfsg1-1+deb12u1CVE-2023-4012

Fixed in:1.2.2+dfsg1-2CVE-2023-4012

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Vendor Advisory1

gitlab.com

Third-Party Advisory1

bugs.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.