{"id":"CVE-2008-2420","aliases":["DEBIAN-CVE-2008-2420","EUVD-2008-2415","GHSA-7266-wh6x-6jjw"],"status":"published","title":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation...","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01364,"percentile":0.7196,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264"],"published":"2008-05-23T15:00:00Z","modified":"2026-10-23T17:47:45Z","fixes":[{"ecosystem":"Debian:12","package":"stunnel4","fixed_in":["3:4.22-1.1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"stunnel4","fixed_in":["3:4.22-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.22-1.1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"stunnel4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3:4.22-1.1"}]}]}],"products":[{"vendor":"stunnel","product":"stunnel"}],"references":[{"url":"http://secunia.com/advisories/30425","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/42528","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00942.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2008/1569/references","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/30335","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/31438","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00856.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2008:168","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://stunnel.mirt.net/pipermail/stunnel-announce/2008-May/000035.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2008-May/msg00907.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://security.gentoo.org/glsa/glsa-200808-08.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/bid/29309","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-2420"},{"url":"https://github.com/advisories/GHSA-7266-wh6x-6jjw"},{"url":"https://security-tracker.debian.org/tracker/CVE-2008-2420","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2008-2420","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2008-05-23T15:00:00Z","modified":"2024-08-07T08:58:02.605Z","updated_at":"2026-11-02T14:34:44.675398Z"}],"euvd":[{"id":"EUVD-2008-2415","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2008-05-23T15:00:00Z","modified":"2024-08-07T08:58:02Z","updated_at":"2026-11-03T01:38:57.150072Z"}],"ghsa":[{"id":"GHSA-7266-wh6x-6jjw","title":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation...","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2022-05-01T23:49:57Z","modified":"2023-01-31T05:06:05Z","updated_at":"2026-11-02T14:48:58.134588Z"}],"nvd":[{"id":"CVE-2008-2420","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2008-05-23T15:32:00Z","modified":"2026-06-16T22:53:44.84Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:01:26.626719Z"}],"osv":[{"id":"CVE-2008-2420","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2008-05-23T15:32:00Z","modified":"2026-04-10T03:39:54.779948Z","updated_at":"2026-11-02T15:43:57.178433Z"},{"id":"DEBIAN-CVE-2008-2420","description":"The OCSP functionality in stunnel before 4.24 does not properly search certificate revocation lists (CRL), which allows remote attackers to bypass intended access restrictions by using revoked certificates.","status":"published","published":"2008-05-23T15:32:00Z","modified":"2026-10-23T17:47:45.653211052Z","updated_at":"2026-11-02T15:45:23.742363Z"}]}}