{"id":"CVE-2009-3024","aliases":["DEBIAN-CVE-2009-3024","EUVD-2009-3008","GHSA-5v53-7q2j-vjr2"],"status":"published","title":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO:...","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00996,"percentile":0.62939,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-310"],"published":"2009-08-31T20:00:00Z","modified":"2026-10-23T17:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"libio-socket-ssl-perl","fixed_in":["1.30-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libio-socket-ssl-perl","fixed_in":["1.30-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libio-socket-ssl-perl","fixed_in":["1.30-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"libio-socket-ssl-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"libio-socket-ssl-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"libio-socket-ssl-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.30-1"}]}]}],"products":[{"vendor":"io-socket-ssl","product":"io-socket-ssl"}],"references":[{"url":"http://cpansearch.perl.org/src/SULLR/IO-Socket-SSL-1.30/Changes","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2011/0118","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.gentoo.org/security/en/glsa/glsa-201101-06.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://secunia.com/advisories/42893","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2009/08/28/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.openwall.com/lists/oss-security/2009/08/29/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.openwall.com/lists/oss-security/2009/08/31/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3024"},{"url":"https://github.com/advisories/GHSA-5v53-7q2j-vjr2"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-3024","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-3024","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2009-08-31T20:00:00Z","modified":"2024-08-07T06:14:55.277Z","updated_at":"2026-11-02T14:33:24.10565Z"}],"euvd":[{"id":"EUVD-2009-3008","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2009-08-31T20:00:00Z","modified":"2024-08-07T06:14:55Z","updated_at":"2026-11-03T01:39:15.098818Z"}],"ghsa":[{"id":"GHSA-5v53-7q2j-vjr2","title":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO:...","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2022-05-02T03:40:54Z","modified":"2023-01-31T05:07:42Z","updated_at":"2026-11-02T14:49:15.572722Z"}],"nvd":[{"id":"CVE-2009-3024","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2009-08-31T20:30:01.093Z","modified":"2026-06-16T23:10:44.947Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:01:36.596719Z"}],"osv":[{"id":"CVE-2009-3024","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2009-08-31T20:30:01Z","modified":"2026-04-10T03:40:52.98381Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2009-3024","description":"The verify_hostname_of_cert function in the certificate checking feature in IO-Socket-SSL (IO::Socket::SSL) 1.14 through 1.25 only matches the prefix of a hostname when no wildcard is used, which allows remote attackers to bypass the hostname check for a certificate.","status":"published","published":"2009-08-31T20:30:01.093Z","modified":"2026-10-23T17:47:28.536272418Z","updated_at":"2026-11-02T15:45:24.013654Z"}]}}