{"id":"CVE-2018-25103","aliases":["DEBIAN-CVE-2018-25103","EUVD-2018-21592","GHSA-844m-hq7r-wxc8","UBUNTU-CVE-2018-25103"],"status":"published","title":"Use-after-free vulnerabilities in lighttpd \u003c= 1.4.50","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-08","score":0.00662,"percentile":0.51919,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2024-06-17T18:02:57Z","modified":"2026-10-23T18:04:47Z","fixes":[{"ecosystem":"Debian:12","package":"lighttpd","fixed_in":["1.4.52-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lighttpd","fixed_in":["1.4.52-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"lighttpd","fixed_in":["1.4.52-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.52-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.52-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.52-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.31-3ubuntu3","1.4.33-1ubuntu1","1.4.33-1+nmu2ubuntu1","1.4.33-1+nmu2ubuntu2","1.4.33-1+nmu2ubuntu2.1","1.4.33-1+nmu2ubuntu2.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.35-4ubuntu1","1.4.35-4ubuntu2","1.4.35-4ubuntu2.1","1.4.35-4ubuntu2.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.45-1ubuntu1","1.4.45-1ubuntu3","1.4.45-1ubuntu3+esm1","1.4.45-1ubuntu3.18.04","1.4.45-1ubuntu3.18.04+esm1","1.4.45-1ubuntu3.18.04.1","1.4.45-1ubuntu3.18.04.1+esm1"]}],"products":[{"vendor":"lighttpd","product":"lighttpd"}],"references":[{"url":"https://blogvdoo.wordpress.com/2018/11/06/giving-back-securing-open-source-iot-projects/#more-736","tags":["x_transferred","article","report"]},{"url":"https://www.runzero.com/blog/lighttpd/","tags":["x_transferred","article","report"]},{"url":"https://github.com/lighttpd/lighttpd1.4/commit/df8e4f95614e476276a55e34da2aa8b00b1148e9","tags":["x_transferred","fix"]},{"url":"https://github.com/lighttpd/lighttpd1.4/commit/d161f53de04bc826ce1bdaeb3dce2c72ca50a3f8","tags":["x_transferred","fix"]},{"url":"https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/2024/AMI-SA-2024002.pdf","tags":["x_transferred","web","report"]},{"url":"https://www.kb.cert.org/vuls/id/312260","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-25103"},{"url":"https://www.binarly.io/blog/lighttpd-gains-new-life","tags":["report"]},{"url":"https://www.runzero.com/blog/lighttpd"},{"url":"https://github.com/advisories/GHSA-844m-hq7r-wxc8"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-25103","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-25103","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-25103","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-25103","title":"Use-after-free vulnerabilities in lighttpd \u003c= 1.4.50","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:02:57.162Z","modified":"2025-09-15T20:05:35.756Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"adp"}],"updated_at":"2026-11-02T14:35:02.289647Z"}],"euvd":[{"id":"EUVD-2018-21592","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:02:57Z","modified":"2025-09-15T20:05:35Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:31:43.516497Z"}],"ghsa":[{"id":"GHSA-844m-hq7r-wxc8","title":"There exists a use-after-free-vulnerability in lighttpd \u003c= 1.4.50 that can allow access to do a...","description":"There exists a use-after-free-vulnerability in lighttpd \u003c= 1.4.50 that can allow access to do a case-insensitive comparison against the reused pointer.","status":"published","published":"2024-06-17T18:31:34Z","modified":"2024-07-09T18:31:46Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T14:57:40.3547Z"}],"nvd":[{"id":"CVE-2018-25103","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:15:12.65Z","modified":"2026-06-17T01:54:43.473Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"updated_at":"2026-11-02T14:05:00.914771Z"}],"osv":[{"id":"CVE-2018-25103","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:15:12.65Z","modified":"2026-10-20T13:37:43.812428376Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:09.442568Z"},{"id":"DEBIAN-CVE-2018-25103","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:15:12.65Z","modified":"2026-10-23T18:04:47.52279576Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:30.867575Z"},{"id":"UBUNTU-CVE-2018-25103","description":"There exists use-after-free vulnerabilities in lighttpd \u003c= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.","status":"published","published":"2024-06-17T18:15:00Z","modified":"2026-04-22T11:53:39.80288Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:17.91743Z"}]}}
