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CVE-2023-33192

7.5 · HIGH

ntpd-rs is an NTP implementation written in Rust.

Published May 27, 2023CWE-130EPSS 0.71%

Overview

CVE-2023-33192 is a high-severity vulnerability. It was published on May 27, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

ntpd-rs is an NTP implementation written in Rust. ntpd-rs does not validate the length of NTS cookies in received NTP packets to the server. An attacker can crash the server by sending a specially crafted NTP packet containing a cookie shorter than what the server expects. The server also crashes when it is not configured to handle NTS packets. The issue was caused by improper slice indexing. The indexing operations were replaced by safer alternatives that do not crash the ntpd-rs server process but instead properly handle the error condition. A patch was released in version 0.3.3.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/pendulum-project/ntpd-rs/pull/752GitHubgithub.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mrjxGitHubgithub.com/pendulum-project/ntpd-rs/pull/752GitHubgithub.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mrjx

How CyberStrike helps

Frequently asked questions

What is CVE-2023-33192?

CVE-2023-33192 is a high-severity vulnerability. It was published on May 27, 2023 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-33192?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-33192?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-33192?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-33192 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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