{"id":"CVE-2019-17420","aliases":["DEBIAN-CVE-2019-17420","EUVD-2019-7816","GHSA-9gx8-hhv8-hw56","UBUNTU-CVE-2019-17420"],"status":"published","title":"In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol...","description":"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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01355,"percentile":0.71818,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-459"],"published":"2019-10-09T23:29:04Z","modified":"2026-10-24T10:47:42Z","fixes":[{"ecosystem":"Debian:12","package":"libhtp","fixed_in":["1:0.5.31-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libhtp","fixed_in":["1:0.5.31-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libhtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.5.31-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libhtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:0.5.31-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libhtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.5.15-1","0.5.15-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libhtp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.5.25-1","1:0.5.26-1","1:0.5.26-1ubuntu0.1~esm1"]}],"products":[{"vendor":"oisf","product":"libhtp"},{"vendor":"suricata-ids","product":"suricata"}],"references":[{"url":"https://redmine.openinfosecfoundation.org/issues/2969","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory","report"]},{"url":"https://github.com/OISF/libhtp/compare/0.5.30...0.5.31","tags":["x_refsource_MISC","x_transferred","Patch","fix","report"]},{"url":"https://github.com/OISF/libhtp/pull/213","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17420"},{"url":"https://github.com/advisories/GHSA-9gx8-hhv8-hw56"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-17420","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-17420","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-17420","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-17420","description":"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.","status":"published","published":"2019-10-09T23:29:04Z","modified":"2024-08-05T01:40:15.367Z","updated_at":"2026-11-02T14:20:24.989116Z"}],"euvd":[{"id":"EUVD-2019-7816","description":"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.","status":"published","published":"2019-10-09T23:29:04Z","modified":"2024-08-05T01:40:15Z","updated_at":"2026-11-03T02:40:29.78058Z"}],"ghsa":[{"id":"GHSA-9gx8-hhv8-hw56","title":"In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol...","description":"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.","status":"published","published":"2022-05-24T16:58:32Z","modified":"2023-01-28T05:07:21Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:31.117774Z"}],"nvd":[{"id":"CVE-2019-17420","description":"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.","status":"published","published":"2019-10-10T01:06:09.56Z","modified":"2026-06-17T02:23:55.547Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-17420","description":"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.","status":"published","published":"2019-10-10T01:06:09.56Z","modified":"2026-10-24T10:47:42.166184346Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-17420","description":"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.","status":"published","published":"2019-10-10T01:06:09.56Z","modified":"2026-09-21T07:00:40.779681133Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"UBUNTU-CVE-2019-17420","description":"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.","status":"published","published":"2019-10-10T01:06:00Z","modified":"2026-04-22T12:13:07.873616Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:20.325378Z"}]}}