{"id":"CVE-2020-16128","aliases":["EUVD-2020-8094","GHSA-hpfw-6cc8-9hhj","UBUNTU-CVE-2020-16128","USN-4664-1"],"status":"published","title":"Aptdaemon error messages disclosed file existence to unprivileged users via dbus properties","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","severity":{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00339,"percentile":0.27627,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-209"],"published":"2020-12-08T00:00:00Z","modified":"2026-06-17T02:57:45Z","fixes":[{"ecosystem":"Ubuntu:16.04:LTS","package":"aptdaemon","fixed_in":["1.1.1+bzr982-0ubuntu14.5"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"aptdaemon","fixed_in":["1.1.1+bzr982-0ubuntu19.5"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"aptdaemon","fixed_in":["1.1.1+bzr982-0ubuntu32.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu14.5"}]}],"versions":["1.1.1+bzr982-0ubuntu14","1.1.1+bzr982-0ubuntu14.1","1.1.1+bzr982-0ubuntu14.2","1.1.1+bzr982-0ubuntu14.3","1.1.1+bzr982-0ubuntu14.4"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu19.5"}]}],"versions":["1.1.1+bzr982-0ubuntu17","1.1.1+bzr982-0ubuntu19","1.1.1+bzr982-0ubuntu19.1","1.1.1+bzr982-0ubuntu19.2","1.1.1+bzr982-0ubuntu19.3","1.1.1+bzr982-0ubuntu19.4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu32.3"}]}],"versions":["1.1.1+bzr982-0ubuntu28","1.1.1+bzr982-0ubuntu30","1.1.1+bzr982-0ubuntu31","1.1.1+bzr982-0ubuntu32","1.1.1+bzr982-0ubuntu32.1","1.1.1+bzr982-0ubuntu32.2"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu14.5"}]}],"versions":["1.1.1+bzr982-0ubuntu14","1.1.1+bzr982-0ubuntu14.1","1.1.1+bzr982-0ubuntu14.2","1.1.1+bzr982-0ubuntu14.3","1.1.1+bzr982-0ubuntu14.4"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu19.5"}]}],"versions":["1.1.1+bzr982-0ubuntu17","1.1.1+bzr982-0ubuntu19","1.1.1+bzr982-0ubuntu19.1","1.1.1+bzr982-0ubuntu19.2","1.1.1+bzr982-0ubuntu19.3","1.1.1+bzr982-0ubuntu19.4"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"aptdaemon","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1+bzr982-0ubuntu32.3"}]}],"versions":["1.1.1+bzr982-0ubuntu28","1.1.1+bzr982-0ubuntu30","1.1.1+bzr982-0ubuntu31","1.1.1+bzr982-0ubuntu32","1.1.1+bzr982-0ubuntu32.1","1.1.1+bzr982-0ubuntu32.2"],"bundled":2}],"products":[{"vendor":"canonical","product":"aptdaemon"},{"vendor":"canonical","product":"ubuntu_linux"}],"references":[{"url":"https://usn.ubuntu.com/usn/usn-4664-1","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://bugs.launchpad.net/ubuntu/+source/aptdaemon/+bug/1899513","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16128"},{"url":"https://github.com/advisories/GHSA-hpfw-6cc8-9hhj"},{"url":"https://ubuntu.com/security/CVE-2020-16128","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4664-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-16128","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-27349","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-16128","title":"Aptdaemon error messages disclosed file existence to unprivileged users via dbus properties","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","status":"published","published":"2020-12-09T03:35:16.896Z","modified":"2024-09-16T16:24:15.489Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:35:59.116379Z"}],"euvd":[{"id":"EUVD-2020-8094","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","status":"published","published":"2020-12-09T03:35:16Z","modified":"2024-09-16T16:24:15Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-03T00:55:51.557415Z"}],"ghsa":[{"id":"GHSA-hpfw-6cc8-9hhj","title":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal...","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","status":"published","published":"2022-05-24T17:35:29Z","modified":"2023-01-29T05:04:51Z","cwes":["CWE-209"],"updated_at":"2026-11-02T14:45:39.24589Z"}],"nvd":[{"id":"CVE-2020-16128","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","status":"published","published":"2020-12-09T04:15:11.86Z","modified":"2026-06-17T02:57:45.563Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:06:27.10541Z"}],"osv":[{"id":"UBUNTU-CVE-2020-16128","description":"The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.","status":"published","published":"2020-12-08T00:00:00Z","modified":"2026-02-04T03:40:30.270921Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"},{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T15:54:23.344108Z"},{"id":"USN-4664-1","title":"aptdaemon vulnerabilities","description":"Kevin Backhouse discovered that Aptdaemon incorrectly handled certain\nproperties. A local attacker could use this issue to test for the presence\nof local files. (CVE-2020-16128)\n\nKevin Backhouse discovered that Aptdaemon incorrectly handled permission\nchecks. A local attacker could possibly use this issue to cause a denial of\nservice. (CVE-2020-27349)\n","status":"published","published":"2020-12-08T15:58:11Z","modified":"2026-02-10T04:42:00Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}