{"id":"CVE-2003-0740","aliases":["DEBIAN-CVE-2003-0740","EUVD-2003-0731","GHSA-94h5-4g3p-4v6g"],"status":"published","title":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(),...","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","severity":{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.007,"percentile":0.53427,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"published":"2003-09-04T04:00:00Z","modified":"2026-10-22T23:47:33Z","exploits":[{"source":"exploitdb","id":"EDB-91","title":"Stunnel 3.24/4.00 - Daemon Hijacking","type":"local","platform":"linux","date":"2003-09-05","verified":true,"url":"https://www.exploit-db.com/exploits/91"}],"fixes":[{"ecosystem":"Debian:14","package":"stunnel","fixed_in":["2:3.26"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"stunnel4","fixed_in":["2:4.04"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"stunnel4","fixed_in":["2:4.04"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"stunnel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.26"}]}],"versions":["3.10-0potato1","3.22-1"]},{"source":"osv","ecosystem":"Debian:12","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.04"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.04"}]}]}],"products":[{"vendor":"stunnel","product":"stunnel"}],"references":[{"url":"http://marc.info/?l=bugtraq\u0026m=106260760211958\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000736","tags":["vendor-advisory","x_refsource_CONECTIVA","x_transferred","web"]},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:108","tags":["vendor-advisory","x_refsource_MANDRAKE","x_transferred","advisory"]},{"url":"http://www.redhat.com/support/errata/RHSA-2003-297.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2003-0740"},{"url":"https://github.com/advisories/GHSA-94h5-4g3p-4v6g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2003-0740","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2003-0740","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2003-09-04T04:00:00Z","modified":"2024-08-08T02:05:12.501Z","updated_at":"2026-11-02T14:20:16.411288Z"}],"euvd":[{"id":"EUVD-2003-0731","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2003-09-04T04:00:00Z","modified":"2024-08-08T02:05:12Z","updated_at":"2026-11-03T01:15:06.435593Z"}],"ghsa":[{"id":"GHSA-94h5-4g3p-4v6g","title":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(),...","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2022-04-29T01:26:55Z","modified":"2023-01-30T05:01:24Z","updated_at":"2026-11-02T14:46:24.524248Z"}],"nvd":[{"id":"CVE-2003-0740","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2003-10-20T04:00:00Z","modified":"2026-06-16T22:02:44.657Z","cvss":[{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:47.41445Z"}],"osv":[{"id":"CVE-2003-0740","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2003-10-20T04:00:00Z","modified":"2026-04-10T03:36:13.948346Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2003-0740","description":"Stunnel 4.00, and 3.24 and earlier, leaks a privileged file descriptor returned by listen(), which allows local users to hijack the Stunnel server.","status":"published","published":"2003-10-20T04:00:00Z","modified":"2026-10-22T23:47:33.022179544Z","updated_at":"2026-11-02T15:45:22.55978Z"}]}}