{"id":"CVE-2019-19271","aliases":["DEBIAN-CVE-2019-19271","EUVD-2019-8897","GHSA-h7h2-5q94-rr6j","UBUNTU-CVE-2019-19271"],"status":"published","title":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable,...","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01257,"percentile":0.69752,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2019-11-26T03:33:56Z","modified":"2026-11-09T10:45:07Z","fixes":[{"ecosystem":"Debian:12","package":"proftpd-dfsg","fixed_in":["1.3.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"proftpd-dfsg","fixed_in":["1.3.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"proftpd-dfsg","fixed_in":["1.3.6-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5-2","1.3.5a-1","1.3.5a-1build1","1.3.5a-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5d-1","1.3.5e-1build1"]}],"products":[{"vendor":"proftpd","product":"proftpd"}],"references":[{"url":"https://github.com/proftpd/proftpd/issues/860","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19271"},{"url":"https://github.com/advisories/GHSA-h7h2-5q94-rr6j"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-19271","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-19271","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-19271","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-19271","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T03:33:56Z","modified":"2024-08-05T02:09:39.442Z","updated_at":"2026-11-02T14:20:20.74896Z"}],"euvd":[{"id":"EUVD-2019-8897","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T03:33:56Z","modified":"2024-08-05T02:09:39Z","updated_at":"2026-11-03T02:40:25.841101Z"}],"ghsa":[{"id":"GHSA-h7h2-5q94-rr6j","title":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable,...","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2022-05-24T17:02:15Z","modified":"2023-01-28T05:07:49Z","updated_at":"2026-11-02T14:44:34.529278Z"}],"nvd":[{"id":"CVE-2019-19271","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T04:15:13.013Z","modified":"2026-06-17T02:26:24.42Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","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-295"],"updated_at":"2026-11-02T14:05:38.993437Z"}],"osv":[{"id":"CVE-2019-19271","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T04:15:13.013Z","modified":"2026-11-09T10:45:07.404286091Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-09T10:53:57.550641Z"},{"id":"DEBIAN-CVE-2019-19271","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T04:15:13.013Z","modified":"2026-09-21T07:01:16.756687834Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"UBUNTU-CVE-2019-19271","description":"An issue was discovered in tls_verify_crl in ProFTPD before 1.3.6. A wrong iteration variable, used when checking a client certificate against CRL entries (installed by a system administrator), can cause some CRL entries to be ignored, and can allow clients whose certificates have been revoked to proceed with a connection to the server.","status":"published","published":"2019-11-26T04:15:00Z","modified":"2026-04-22T12:15:36.44368Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:20.325378Z"}]}}