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.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-1616 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.
Github GHSA Github GHSA GHSA-qwhm-h7v3-mrjx Improper handling of NTS cookie length that could crash the ntpd-rs server
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 14 Jan 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-01-14T18:20:44.928Z

Reserved: 2023-05-17T22:25:50.699Z

Link: CVE-2023-33192

cve-icon Vulnrichment

Updated: 2024-08-02T15:39:35.717Z

cve-icon NVD

Status : Modified

Published: 2023-05-27T04:15:25.673

Modified: 2024-11-21T08:05:05.530

Link: CVE-2023-33192

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.