{"id":"CVE-2019-17420","details":"In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single \\r\\n ending.","modified":"2026-07-08T20:29:31.483484Z","published":"2019-10-10T01:06:09.560Z","references":[{"type":"REPORT","url":"https://redmine.openinfosecfoundation.org/issues/2969"},{"type":"FIX","url":"https://github.com/OISF/libhtp/compare/0.5.30...0.5.31"},{"type":"FIX","url":"https://github.com/OISF/libhtp/pull/213"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/libhtp","events":[{"introduced":"0"},{"fixed":"f0119bbdb7627b33a2ff1a18cf3c439b96606a14"}],"database_specific":{"cpe":"cpe:2.3:a:oisf:libhtp:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.5.31"}],"source":"CPE_RANGE"}}],"versions":["0.5.30","0.5.29","0.5.28","0.5.27","0.5.26","0.5.25","0.5.24","0.5.23","0.5.22","0.5.21","0.5.20","0.5.19","0.5.18","0.5.17","0.5.16","0.5.15","0.5.14","0.5.13","0.5.12","0.5.11","0.5.10","0.5.9","0.5.8","0.5.7","0.5.6","0.5.5","0.5.4","0.5.3","0.5.2","0.5.1","0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17420.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"14c2b6e445b3e8b5f802c4538397c12bfd3f831d"},{"last_affected":"14c2b6e445b3e8b5f802c4538397c12bfd3f831d"}],"database_specific":{"cpe":"cpe:2.3:a:suricata-ids:suricata:4.1.4:*:*:*:*:*:*:*","extracted_events":[{"introduced":"4.1.4"},{"last_affected":"4.1.4"}],"source":"CPE_STRING"}}],"versions":["4.1.4","suricata-4.1.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17420.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:L/A:N"}]}