CVE-2023-33192
Last modified
CVE-2023-33192 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.71% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tweedegolf | Ntpd-Rs | >= 0.3.0, < 0.3.3 |
References
- https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mrjxMitigation, Vendor Advisory
- https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mrjxMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-33192?
How severe is CVE-2023-33192?
How do I fix CVE-2023-33192?
Are you affected by CVE-2023-33192?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST