{"id":"CVE-2018-9234","aliases":["DEBIAN-CVE-2018-9234","EUVD-2018-20828","GHSA-mq99-p8pq-jp4q","MGASA-2018-0254","SUSE-SU-2023:3857-1","UBUNTU-CVE-2018-9234","USN-3675-1","openSUSE-SU-2024:10815-1"],"status":"published","title":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an...","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01957,"percentile":0.804,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-320"],"published":"2018-04-03T00:00:00Z","modified":"2026-10-23T18:03:10Z","fixes":[{"ecosystem":"Debian:12","package":"gnupg2","fixed_in":["2.2.7-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gnupg2","fixed_in":["2.2.7-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gnupg2","fixed_in":["2.2.7-1"],"sources":["osv"]},{"ecosystem":"Mageia:5","package":"gnupg2","fixed_in":["2.0.27-1.1.mga5"],"sources":["osv"]},{"ecosystem":"Mageia:6","package":"gnupg2","fixed_in":["2.1.21-3.mga6"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","package":"gpg2","fixed_in":["2.0.24-9.14.1"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","package":"gpg2","fixed_in":["2.0.24-9.14.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"gnupg2","fixed_in":["2.2.4-1ubuntu1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.7-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.7-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.7-1"}]}]},{"source":"osv","ecosystem":"Mageia:5","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.27-1.1.mga5"}]}]},{"source":"osv","ecosystem":"Mageia:6","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.21-3.mga6"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP5","package":"gpg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.24-9.14.1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","package":"gpg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.24-9.14.1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.4-1ubuntu1.1"}]}],"versions":["2.1.15-1ubuntu8","2.2.4-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"gnupg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.16-1ubuntu2.5"}]}],"versions":["1.4.14-1ubuntu2","1.4.15-1.1ubuntu1","1.4.15-1.1ubuntu2","1.4.15-2ubuntu1","1.4.16-1ubuntu1","1.4.16-1ubuntu2","1.4.16-1ubuntu2.1","1.4.16-1ubuntu2.3","1.4.16-1ubuntu2.4"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"gnupg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.20-1ubuntu3.2"}]}],"versions":["1.4.18-7ubuntu1","1.4.19-6ubuntu1","1.4.20-1ubuntu1","1.4.20-1ubuntu2","1.4.20-1ubuntu3","1.4.20-1ubuntu3.1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"gnupg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.4-1ubuntu1.1"}]}],"versions":["2.1.15-1ubuntu8","2.2.4-1ubuntu1"],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"gpg2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.27-2.4"}]}],"bundled":8}],"products":[{"vendor":"canonical","product":"ubuntu_linux"},{"vendor":"gnupg","product":"gnupg"}],"references":[{"url":"https://dev.gnupg.org/T3844","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://usn.ubuntu.com/3675-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9234"},{"url":"https://github.com/advisories/GHSA-mq99-p8pq-jp4q"},{"url":"https://security-tracker.debian.org/tracker/CVE-2018-9234","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0254.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22940","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20233857-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1088255","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-9234","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2018-9234","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3675-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-9234","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2018-12020","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2006-0455","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2006-3746","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2006-6169","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2008-1530","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-14855","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25125","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-9234","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-04T00:00:00Z","modified":"2024-08-05T07:17:52.005Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-20828","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-04T00:00:00Z","modified":"2024-08-05T07:17:52Z","updated_at":"2026-11-03T02:40:00.465176Z"}],"ghsa":[{"id":"GHSA-mq99-p8pq-jp4q","title":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an...","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2022-05-14T01:30:35Z","modified":"2023-02-02T05:04:00Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T14:51:45.826629Z"}],"nvd":[{"id":"CVE-2018-9234","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-04T00:29:00.227Z","modified":"2026-06-17T02:06:14.943Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-320"],"updated_at":"2026-11-02T14:04:24.700429Z"}],"osv":[{"id":"CVE-2018-9234","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-04T00:29:00.227Z","modified":"2026-04-16T06:20:05.046979941Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:10.051046Z"},{"id":"DEBIAN-CVE-2018-9234","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-04T00:29:00.227Z","modified":"2026-10-23T18:03:10.075282147Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:31.170944Z"},{"id":"UBUNTU-CVE-2018-9234","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.","status":"published","published":"2018-04-03T00:00:00Z","modified":"2026-02-04T02:28:08.604607Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:54:18.772093Z"},{"id":"MGASA-2018-0254","title":"Updated gnupg2 packages fix security vulnerability","description":"GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key\ncertification requires an offline master Certify key, which results in\napparently valid certifications that occurred only with access to a\nsigning subkey. (CVE-2018-9234)\n","status":"published","published":"2018-05-24T16:30:31Z","modified":"2026-04-16T06:26:16.369707881Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2024:10815-1","title":"dirmngr-2.2.27-2.4 on GA media","description":"These are all security issues fixed in the dirmngr-2.2.27-2.4 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:45:05.784342Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"SUSE-SU-2023:3857-1","title":"Security update for gpg2","description":"This update for gpg2 fixes the following issues:\n\n- CVE-2018-9234: Fixed unenforced configuration allows for apparently valid certifications actually signed by signing subkeys (bsc#1088255).\n","status":"published","published":"2023-09-28T08:32:48Z","modified":"2025-05-02T04:30:01.883367Z","updated_at":"2026-11-02T15:53:53.440387Z"},{"id":"USN-3675-1","title":"gnupg, gnupg2 vulnerabilities","description":"Marcus Brinkmann discovered that during decryption or verification,\nGnuPG did not properly filter out terminal sequences when reporting the\noriginal filename. An attacker could use this to specially craft a file\nthat would cause an application parsing GnuPG output to incorrectly\ninterpret the status of the cryptographic operation reported by GnuPG.\n(CVE-2018-12020)\n\nLance Vick discovered that GnuPG did not enforce configurations where\nkey certification required an offline primary Certify key. An attacker\nwith access to a signing subkey could generate certifications that\nappeared to be valid. This issue only affected Ubuntu 18.04 LTS.\n(CVE-2018-9234)\n","status":"published","published":"2018-06-11T21:53:17Z","modified":"2026-04-27T15:33:03.886966346Z","updated_at":"2026-11-02T16:58:13.496563Z"}]}}