Improper Handling of Length Parameter Inconsistency in ntpd-rs - CVE-2023-33192
Published: May 25, 2023 / Updated: April 24, 2026
Vulnerability identifier: #VU127486
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-33192
CWE-ID: CWE-130
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ntpd-rs
ntpd-rs
Software vendor:
Project Pendulum
Project Pendulum
Description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper handling of length parameter inconsistency in NTS cookie processing when handling NTP packets containing a shorter-than-expected cookie. A remote attacker can send a specially crafted NTP packet to cause a denial of service.
The issue affects server operation, including cases where the server is not configured to handle NTS packets.
Remediation
Install security update from vendor's website.