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CVE-2019-6444

CriticalPublished

An issue was discovered in NTPsec before 1.1.3. process_control() in ntp_control.c has a stack-based buffer over-read because attacker-controlled data is...

Published: Jan 16, 2019
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Jan 16, 2019

Primary CVSS

9.1/ 10Critical

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

EPSS probability estimate

34.6%

Moderate · next 30 days

Percentile: 98.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

An issue was discovered in NTPsec before 1.1.3. process_control() in ntp_control.c has a stack-based buffer over-read because attacker-controlled data is dereferenced by ntohl() in ntpd.

Sources

NTPsec 1.1.2 - 'ntp_control' Out-of-Bounds Read (PoC)Exploit
Magnus Klaaborg Stubman · linux · Jan 16, 2019

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