{"id":"GHSA-37xq-q42p-rv3p","aliases":[],"status":"published","title":"ntpd has Dependency on Vulnerable Third-Party Component","description":"During startup, an attacker that can man-in-the-middle traffic to and from NTS key exchange servers can trigger a very expensive key validation process due to a vulnerability in webpki.\n\n### Impact\nThis vulnerability can lead to excessive cpu usage on startup on clients configured to use NTS\n\n### Patches\nAffected users are recommended to upgrade to version 0.3.7\n\n### References\nSee also https://github.com/rustsec/advisory-db/blob/main/crates/rustls-webpki/RUSTSEC-2023-0053.md","severity":{"version":"3.1","score":2.6,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1395"],"published":"2023-08-24T22:18:39Z","modified":"2024-06-26T15:20:10Z","fixes":[{"ecosystem":"crates.io","package":"ntpd","fixed_in":["0.3.7"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"ntpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.3.7"}]}]},{"source":"osv","ecosystem":"crates.io","package":"ntpd","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.3.7"}]}]}],"references":[{"url":"https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-37xq-q42p-rv3p","tags":["web"]},{"url":"https://github.com/pendulum-project/ntpd-rs/commit/927952a440176a18f3ded132eb831ae7f7ac5c00","tags":["web"]},{"url":"https://github.com/rustsec/advisory-db/blob/main/crates/rustls-webpki/RUSTSEC-2023-0053.md","tags":["web"]},{"url":"https://github.com/advisories/GHSA-37xq-q42p-rv3p"},{"url":"https://github.com/pendulum-project/ntpd-rs","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-37xq-q42p-rv3p","title":"ntpd has Dependency on Vulnerable Third-Party Component","description":"During startup, an attacker that can man-in-the-middle traffic to and from NTS key exchange servers can trigger a very expensive key validation process due to a vulnerability in webpki.\n\n### Impact\nThis vulnerability can lead to excessive cpu usage on startup on clients configured to use NTS\n\n### Patches\nAffected users are recommended to upgrade to version 0.3.7\n\n### References\nSee also https://github.com/rustsec/advisory-db/blob/main/crates/rustls-webpki/RUSTSEC-2023-0053.md\n","status":"published","published":"2023-08-24T22:18:39Z","modified":"2024-06-26T15:20:10Z","cvss":[{"version":"3.1","score":2.6,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-1395"],"updated_at":"2026-11-02T14:37:55.455438Z"}],"osv":[{"id":"GHSA-37xq-q42p-rv3p","title":"ntpd has Dependency on Vulnerable Third-Party Component","description":"During startup, an attacker that can man-in-the-middle traffic to and from NTS key exchange servers can trigger a very expensive key validation process due to a vulnerability in webpki.\n\n### Impact\nThis vulnerability can lead to excessive cpu usage on startup on clients configured to use NTS\n\n### Patches\nAffected users are recommended to upgrade to version 0.3.7\n\n### References\nSee also https://github.com/rustsec/advisory-db/blob/main/crates/rustls-webpki/RUSTSEC-2023-0053.md\n","status":"published","published":"2023-08-24T22:18:39Z","modified":"2024-06-26T15:20:09Z","cvss":[{"version":"3.1","score":2.6,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-1395"],"updated_at":"2026-11-02T15:46:35.406455Z"}]}}