Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tweedegolf | Ntpd-Rs | >= 0.3.0, < 0.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/pendulum-project/ntpd-rs/pull/752Patch
- https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mMitigationVendor Advisory
- https://github.com/pendulum-project/ntpd-rs/pull/752Patch
- https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-qwhm-h7v3-mMitigationVendor Advisory
FAQ
What is CVE-2023-33192?
CVE-2023-33192 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 cra...
How severe is CVE-2023-33192?
CVE-2023-33192 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-33192?
Check the references section above for vendor advisories and patch information. Affected products include: Tweedegolf Ntpd-Rs.