{"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":"2026-04-10T04:13:10.875581Z","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/pull/213"},{"type":"FIX","url":"https://github.com/OISF/libhtp/compare/0.5.30...0.5.31"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oisf/libhtp","events":[{"introduced":"0"},{"fixed":"f0119bbdb7627b33a2ff1a18cf3c439b96606a14"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.5.31"}]}},{"type":"GIT","repo":"https://github.com/oisf/suricata","events":[{"introduced":"0"},{"last_affected":"14c2b6e445b3e8b5f802c4538397c12bfd3f831d"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"4.1.4"}]}}],"versions":["0.5.0","0.5.1","0.5.10","0.5.11","0.5.12","0.5.13","0.5.14","0.5.15","0.5.16","0.5.17","0.5.18","0.5.19","0.5.2","0.5.20","0.5.21","0.5.22","0.5.23","0.5.24","0.5.25","0.5.26","0.5.27","0.5.28","0.5.29","0.5.3","0.5.30","0.5.4","0.5.5","0.5.6","0.5.7","0.5.8","0.5.9","suricata-0.8.2","suricata-1.0.0","suricata-1.0.1","suricata-1.0.2","suricata-1.1","suricata-1.1beta1","suricata-1.1beta2","suricata-1.1beta3","suricata-1.1rc1","suricata-1.2","suricata-1.2.1","suricata-1.2beta1","suricata-1.2rc1","suricata-1.3","suricata-1.3.1","suricata-1.3beta1","suricata-1.3beta2","suricata-1.3rc1","suricata-1.4","suricata-1.4beta1","suricata-1.4beta2","suricata-1.4beta3","suricata-1.4rc1","suricata-2.0","suricata-2.0.1","suricata-2.0.1rc1","suricata-2.0.2","suricata-2.0beta1","suricata-2.0beta2","suricata-2.0rc1","suricata-2.0rc2","suricata-2.0rc3","suricata-2.1beta1","suricata-2.1beta2","suricata-2.1beta3","suricata-2.1beta4","suricata-3.0","suricata-3.0.1","suricata-3.0.1RC1","suricata-3.0RC1","suricata-3.0RC2","suricata-3.0RC3","suricata-3.1","suricata-3.1.1","suricata-3.1.2","suricata-3.1RC1","suricata-3.2","suricata-3.2.1","suricata-3.2RC1","suricata-3.2beta1","suricata-4.0.0","suricata-4.0.0-beta1","suricata-4.0.0-rc1","suricata-4.0.0-rc2","suricata-4.0.1","suricata-4.1.0","suricata-4.1.0-beta1","suricata-4.1.0-rc1","suricata-4.1.0-rc2","suricata-4.1.1","suricata-4.1.2","suricata-4.1.3","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"}]}