{"id":"CVE-2018-1000002","aliases":["DEBIAN-CVE-2018-1000002","EUVD-2018-1774","GHSA-47fr-2fhh-8hrg"],"status":"published","title":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1...","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01081,"percentile":0.65367,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2018-01-22T18:00:00Z","modified":"2026-10-24T10:31:05Z","fixes":[{"ecosystem":"Debian:12","package":"knot-resolver","fixed_in":["1.5.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"knot-resolver","fixed_in":["1.5.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"knot-resolver","fixed_in":["1.5.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"knot-resolver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"knot-resolver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"knot-resolver","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2-1"}]}]}],"products":[{"vendor":"nic","product":"knot_resolver"}],"references":[{"url":"https://www.knot-resolver.cz/2018-01-22-knot-resolver-1.5.2.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000002"},{"url":"https://github.com/advisories/GHSA-47fr-2fhh-8hrg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-1000002","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2018-1000002","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2018-01-22T18:00:00Z","modified":"2024-08-05T12:33:48.923Z","updated_at":"2026-11-02T14:35:10.685174Z"}],"euvd":[{"id":"EUVD-2018-1774","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2018-01-22T18:00:00Z","modified":"2024-08-05T12:33:48Z","updated_at":"2026-11-03T02:39:27.400094Z"}],"ghsa":[{"id":"GHSA-47fr-2fhh-8hrg","title":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1...","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2022-05-13T01:30:41Z","modified":"2023-02-01T05:08:01Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:50:40.02829Z"}],"nvd":[{"id":"CVE-2018-1000002","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2018-01-22T18:29:00.227Z","modified":"2026-06-17T01:32:10.967Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:04:22.309028Z"}],"osv":[{"id":"CVE-2018-1000002","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2018-01-22T18:29:00.227Z","modified":"2026-10-24T10:31:05.846937984Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:44:07.192756Z"},{"id":"DEBIAN-CVE-2018-1000002","description":"Improper input validation bugs in DNSSEC validators components in Knot Resolver (prior version 1.5.2) allow attacker in man-in-the-middle position to deny existence of some data in DNS via packet replay.","status":"published","published":"2018-01-22T18:29:00.227Z","modified":"2026-10-23T18:03:17.352243602Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:45:29.988046Z"}]}}