{"id":"CVE-2024-23837","aliases":["DEBIAN-CVE-2024-23837","DLA-4295-1","EUVD-2024-21279","GHSA-f9wf-rrjj-qx8m","UBUNTU-CVE-2024-23837","USN-7814-1","openSUSE-SU-2024:0150-1","openSUSE-SU-2024:0150-2","openSUSE-SU-2024:13706-1"],"status":"published","title":"LibHTP unbounded folded header handling leads to denial service","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01193,"percentile":0.6842,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2024-02-26T16:17:24Z","modified":"2026-11-02T12:00:51Z","fixes":[{"ecosystem":"Debian:12","package":"libhtp","fixed_in":["1:0.5.42-1+deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libhtp","fixed_in":["1:0.5.46-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libhtp","fixed_in":["0.5.15-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libhtp","fixed_in":["1:0.5.26-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libhtp","fixed_in":["1:0.5.32-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"libhtp","fixed_in":["1:0.5.39-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"SUSE:Package 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Advisory","advisory","report"]},{"url":"https://github.com/OISF/libhtp/commit/20ac301d801cdf01b3f021cca08a22a87f477c4a","tags":["x_refsource_MISC","x_transferred","Patch","fix","report"]},{"url":"https://redmine.openinfosecfoundation.org/issues/6444","tags":["x_refsource_MISC","x_transferred","Exploit","web","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GOCOBFUTIFHOP2PZOH4ENRFXRBHIRKK4/","tags":["x_transferred","Mailing List","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXJIT7R53ZXROO3I256RFUWTIW4ECK6P/","tags":["x_transferred","Mailing List","web"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/09/msg00009.html","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/23xxx/CVE-2024-23837.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23837","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-23837","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-23837","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-23837","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7814-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-28871","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2024-45797","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2025-53537","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WSV4SW3Q2M5YNZAO7EJJPWIEXOXJCWZH/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1220403","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2024-23837","tags":["web"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FG73M6UTBO6SVSDD77QUNSFAD243MM4V/","tags":["advisory"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-23837","title":"LibHTP unbounded folded header handling leads to denial service","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:17:24.372Z","modified":"2025-11-03T18:08:14.608Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:34:05.444281Z"}],"euvd":[{"id":"EUVD-2024-21279","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:17:24Z","modified":"2025-11-03T18:08:14Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T19:49:34.635725Z"}],"nvd":[{"id":"CVE-2024-23837","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:27:57.897Z","modified":"2026-06-17T07:13:42.737Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:09:38.473056Z"}],"osv":[{"id":"CVE-2024-23837","title":"LibHTP unbounded folded header handling leads to denial service","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:17:24.372Z","modified":"2026-11-11T13:28:58.336551311Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-11T03:22:28.447808Z"},{"id":"DEBIAN-CVE-2024-23837","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:27:57.897Z","modified":"2026-11-02T12:00:51.254590456Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:41.849198Z"},{"id":"UBUNTU-CVE-2024-23837","description":"LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed in 0.5.46.","status":"published","published":"2024-02-26T16:27:00Z","modified":"2026-04-22T14:40:33.178919Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:42.68848Z"},{"id":"DLA-4295-1","title":"libhtp - security update","status":"published","published":"2025-09-08T00:00:00Z","modified":"2026-03-09T02:11:16.506173Z","updated_at":"2026-11-02T15:46:12.7027Z"},{"id":"openSUSE-SU-2024:0150-1","title":"Security update for libhtp","description":"This update for libhtp fixes the following issues:\n\n- CVE-2024-23837: excessive processing time of HTTP headers can\n  lead to denial of service (boo#1220403)\n","status":"published","published":"2024-06-04T03:11:10Z","modified":"2026-02-04T03:55:13.599222Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"openSUSE-SU-2024:0150-2","title":"Security update for libhtp","description":"This update for libhtp fixes the following issues:\n\n- CVE-2024-23837: excessive processing time of HTTP headers can\n  lead to denial of service (boo#1220403)\n","status":"published","published":"2024-06-04T03:11:10Z","modified":"2026-02-04T02:20:29.02396Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"openSUSE-SU-2024:13706-1","title":"libhtp-devel-0.5.46-1.1 on GA media","description":"These are all security issues fixed in the libhtp-devel-0.5.46-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:06:50.845144Z","updated_at":"2026-11-02T16:58:36.327643Z"},{"id":"USN-7814-1","title":"libhtp vulnerabilities","description":"It was discovered that LibHTP did not correctly handle certain HTTP\nheaders. A remote attacker could possibly use this issue to cause a denial\nof service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,\nUbuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2024-23837)\n\nIt was discovered that LibHTP did not correctly parse certain HTTP\nrequests. A remote attacker could possibly use this issue to cause a\ndenial of service. This issue only affected Ubuntu 20.04 LTS,\nUbuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-28871)\n\nIt was discovered that LibHTP did not correctly parse certain HTTP\nrequests. A remote attacker could possibly use this issue to cause a\ndenial of service. (CVE-2024-45797)\n\nIt was discovered that LibHTP did not correctly handle certain memory\noperations. A remote attacker could possibly use this issue to cause a\ndenial of service. This issue only affected Ubuntu 20.04 LTS,\nUbuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 25.04. (CVE-2025-53537)","status":"published","published":"2025-10-09T02:15:21Z","modified":"2026-06-25T13:32:31.171355373Z","updated_at":"2026-11-02T16:58:21.91885Z"}]}}