{"id":"CVE-2018-9275","aliases":["DEBIAN-CVE-2018-9275","EUVD-2018-20869","GHSA-24jw-8jpm-q7p5","UBUNTU-CVE-2018-9275","openSUSE-SU-2024:11146-1"],"status":"published","title":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25,...","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","severity":{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01416,"percentile":0.72925,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2018-04-04T18:00:00Z","modified":"2026-10-23T18:03:10Z","fixes":[{"ecosystem":"Debian:12","package":"yubico-pam","fixed_in":["2.26-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"yubico-pam","fixed_in":["2.26-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"yubico-pam","fixed_in":["2.26-1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"pam_yubico","fixed_in":["2.27-1.5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"yubico-pam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"yubico-pam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"yubico-pam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.26-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"yubico-pam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19-1","2.20-1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"yubico-pam","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.23-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"pam_yubico","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.27-1.5"}]}]}],"products":[{"vendor":"yubico","product":"yubico_pam"}],"references":[{"url":"https://bugzilla.opensuse.org/show_bug.cgi?id=1088027","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix","report"]},{"url":"https://github.com/Yubico/yubico-pam/issues/136","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9275"},{"url":"https://github.com/advisories/GHSA-24jw-8jpm-q7p5"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-9275","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-9275","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-9275","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9275","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-9275","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:00:00Z","modified":"2024-09-17T04:23:59.373Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-20869","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:00:00Z","modified":"2024-09-17T04:23:59Z","updated_at":"2026-11-03T00:28:23.50734Z"}],"ghsa":[{"id":"GHSA-24jw-8jpm-q7p5","title":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25,...","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2022-05-14T03:22:27Z","modified":"2023-02-02T05:07:43Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:52:34.391987Z"}],"nvd":[{"id":"CVE-2018-9275","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:29:02.497Z","modified":"2026-06-17T02:06:20.387Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:04:24.700429Z"}],"osv":[{"id":"CVE-2018-9275","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:29:02.497Z","modified":"2026-10-20T13:45:09.988395123Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:10.051046Z"},{"id":"DEBIAN-CVE-2018-9275","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:29:02.497Z","modified":"2026-10-23T18:03:10.180364765Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:31.170944Z"},{"id":"UBUNTU-CVE-2018-9275","description":"In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).","status":"published","published":"2018-04-04T18:29:00Z","modified":"2025-10-24T04:46:58Z","cvss":[{"version":"3.0","score":8.2,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:18.772093Z"},{"id":"openSUSE-SU-2024:11146-1","title":"pam_yubico-2.27-1.5 on GA media","description":"These are all security issues fixed in the pam_yubico-2.27-1.5 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:58:25.88661Z","updated_at":"2026-11-02T16:58:34.894275Z"}]}}