{"id":"CVE-2002-1563","aliases":["DEBIAN-CVE-2002-1563","EUVD-2002-1545","GHSA-6234-fx93-pwcr"],"status":"published","title":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD...","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","severity":{"version":"2.0","score":1.2,"vector":"AV:L/AC:H/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00337,"percentile":0.27323,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2003-04-26T04:00:00Z","modified":"2026-10-22T23:47:25Z","fixes":[{"ecosystem":"Debian:14","package":"stunnel","fixed_in":["2:3.24-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"stunnel4","fixed_in":["4.04-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"stunnel4","fixed_in":["4.04-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"stunnel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:3.24-1"}]}],"versions":["3.10-0potato1","3.22-1"]},{"source":"osv","ecosystem":"Debian:12","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.04-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.04-1"}]}]}],"products":[{"vendor":"stunnel","product":"stunnel"}],"references":[{"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3535.html","tags":["vendor-advisory","x_refsource_ENGARDE","x_transferred","advisory"]},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000736","tags":["vendor-advisory","x_refsource_CONECTIVA","x_transferred","web"]},{"url":"http://marc.info/?l=bugtraq\u0026m=104247606910598","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://www.redhat.com/support/errata/RHSA-2003-223.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"http://marc.info/?l=stunnel-users\u0026m=103600188215117\u0026w=2","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/6592","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://marc.info/?l=bugtraq\u0026m=106029168514511\u0026w=2","tags":["vendor-advisory","x_refsource_TRUSTIX","x_transferred","web"]},{"url":"http://www.redhat.com/support/errata/RHSA-2003-221.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1563"},{"url":"https://github.com/advisories/GHSA-6234-fx93-pwcr"},{"url":"https://security-tracker.debian.org/tracker/CVE-2002-1563","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2002-1563","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2003-04-26T04:00:00Z","modified":"2024-08-08T03:26:28.913Z","updated_at":"2026-11-02T14:33:54.972584Z"}],"euvd":[{"id":"EUVD-2002-1545","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2003-04-26T04:00:00Z","modified":"2024-08-08T03:26:28Z","updated_at":"2026-11-03T01:14:55.73497Z"}],"ghsa":[{"id":"GHSA-6234-fx93-pwcr","title":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD...","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2022-04-30T18:21:24Z","modified":"2023-01-30T05:06:24Z","updated_at":"2026-11-02T14:47:29.130906Z"}],"nvd":[{"id":"CVE-2002-1563","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2003-05-12T04:00:00Z","modified":"2026-06-16T21:59:33.623Z","cvss":[{"version":"2.0","score":1.2,"vector":"AV:L/AC:H/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:00:44.251133Z"}],"osv":[{"id":"CVE-2002-1563","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2003-05-12T04:00:00Z","modified":"2026-04-10T03:34:44.975845Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2002-1563","description":"stunnel 4.0.3 and earlier allows attackers to cause a denial of service (crash) via SIGCHLD signal handler race conditions that cause an inconsistency in the child counter.","status":"published","published":"2003-05-12T04:00:00Z","modified":"2026-10-22T23:47:25.577017101Z","updated_at":"2026-11-02T15:45:22.248131Z"}]}}