{"id":"CVE-2017-12164","aliases":["DEBIAN-CVE-2017-12164","EUVD-2017-3741","GHSA-87vr-968r-r3qp","MGASA-2018-0056","openSUSE-SU-2024:10780-1"],"status":"published","title":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean...","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","severity":{"version":"3.0","score":4.1,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00385,"percentile":0.32882,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-592","CWE-665"],"published":"2018-01-03T18:52:52Z","modified":"2026-10-24T10:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"gdm3","fixed_in":["3.26.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"gdm3","fixed_in":["3.26.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"gdm3","fixed_in":["3.26.0-1"],"sources":["osv"]},{"ecosystem":"Mageia:6","package":"gdm","fixed_in":["3.24.3-1.mga6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"gdm3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"gdm3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"gdm3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.26.0-1"}]}]},{"source":"osv","ecosystem":"Mageia:6","package":"gdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.24.3-1.mga6"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"gdm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.38.2-2.7"}]}],"bundled":3}],"products":[{"vendor":"gnome","product":"gdm"},{"vendor":"gnome","product":"gnome_display_manager"},{"vendor":"the gnome projectr","product":"gdm"}],"references":[{"url":"https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-12164"},{"url":"https://github.com/advisories/GHSA-87vr-968r-r3qp"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-12164","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2018-0056.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=21717","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/CUDXKEMLQPVFJP52PBLEOLKUMYUY25UJ/","tags":["web"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12164","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-14424","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-3825","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-12164","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2018-07-26T16:00:00Z","modified":"2024-08-05T18:28:16.573Z","cvss":[{"version":"3.0","score":4.1,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-592"],"updated_at":"2026-11-02T14:33:17.59533Z"}],"euvd":[{"id":"EUVD-2017-3741","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2018-07-26T16:00:00Z","modified":"2024-08-05T18:28:16Z","cvss":[{"version":"3.0","score":4.1,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T02:23:22.23661Z"}],"ghsa":[{"id":"GHSA-87vr-968r-r3qp","title":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean...","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2022-05-13T01:38:14Z","modified":"2023-02-01T05:08:50Z","cvss":[{"version":"3.0","score":6.4,"vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-665"],"updated_at":"2026-11-02T14:50:52.215811Z"}],"nvd":[{"id":"CVE-2017-12164","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2018-07-26T16:29:00.327Z","modified":"2026-06-17T01:02:48.21Z","cvss":[{"version":"3.0","score":4.1,"vector":"CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.0","score":6.4,"vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-592","CWE-665"],"updated_at":"2026-11-02T14:04:18.679411Z"}],"osv":[{"id":"CVE-2017-12164","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2018-07-26T16:29:00.327Z","modified":"2026-10-24T10:47:28.424966635Z","cvss":[{"version":"3.0","score":6.4,"vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:04.159616Z"},{"id":"DEBIAN-CVE-2017-12164","description":"A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.","status":"published","published":"2018-07-26T16:29:00.327Z","modified":"2026-09-01T20:03:41.91686532Z","cvss":[{"version":"3.0","score":6.4,"vector":"CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:28.50097Z"},{"id":"MGASA-2018-0056","title":"Updated gdm packages fix security vulnerability","description":"Updated gdm packages fix security vulnerability:\n\nA flaw was discovered in the gdm where gdm greeter was no longer setting\nthe ran_once boolean during autologin. If autologin was enable for a\nvictim, an attacker could simply select 'login as another user' to unlock\ntheir screen (CVE-2017-12164).\n","status":"published","published":"2018-01-03T18:52:52Z","modified":"2026-04-16T06:24:17.985384992Z","updated_at":"2026-11-02T15:49:40.442238Z"},{"id":"openSUSE-SU-2024:10780-1","title":"gdm-3.38.2-2.7 on GA media","description":"These are all security issues fixed in the gdm-3.38.2-2.7 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:38:43.269894Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}