{"id":"CVE-2019-10191","details":"A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.","modified":"2026-05-18T05:51:49.980799663Z","published":"2019-07-16T18:15:12.180Z","database_specific":{"unresolved_ranges":[{"extracted_events":[{"last_affected":"29"},{"last_affected":"30"}],"cpes":["cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*"],"source":"CPE_FIELD","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/04/msg00017.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/"},{"type":"ADVISORY","url":"https://www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.html"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10191"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cz-nic/knot-resolver","events":[{"introduced":"0"},{"fixed":"0d2f2faff25dc01dcb676cd3c4242047af705e7a"}],"database_specific":{"cpe":"cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"4.1.0"}],"source":"CPE_FIELD"}}],"versions":["v4.0.0","v3.2.1","v3.2.0","v3.1.0","v3.0.0","v2.4.0","v2.3.0","v2.2.0","v2.1.1","v2.1.0","v2.0.0","v1.5.1","v1.5.0","v1.4.0","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.6","v1.2.1","v1.2.0","v1.2.0-rc3","v1.2.0-rc2","v1.2.0-rc1","v1.1.1","v1.1.0","v1.0.0","v1.0.0-beta3","v1.0.0-beta2","v1.0.0-beta1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-10191.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}