{"id":"USN-4269-1","summary":"systemd vulnerabilities","details":"It was discovered that systemd incorrectly handled certain PIDFile files.\nA local attacker could possibly use this issue to trick systemd into\nkilling privileged processes. This issue only affected Ubuntu 16.04 LTS.\n(CVE-2018-16888)\n\nIt was discovered that systemd incorrectly handled certain udevadm trigger\ncommands. A local attacker could possibly use this issue to cause systemd\nto consume resources, leading to a denial of service. (CVE-2019-20386)\n\nJann Horn discovered that systemd incorrectly handled services that use the\nDynamicUser property. A local attacker could possibly use this issue to\naccess resources owned by a different service in the future. This issue\nonly affected Ubuntu 18.04 LTS. (CVE-2019-3843, CVE-2019-3844)\n\nTavis Ormandy discovered that systemd incorrectly handled certain Polkit\nqueries. A local attacker could use this issue to cause systemd to crash,\nresulting in a denial of service, or possibly execute arbitrary code and\nescalate privileges. (CVE-2020-1712)\n","modified":"2026-02-10T04:41:46Z","published":"2020-02-05T16:39:46Z","related":["UBUNTU-CVE-2018-16888","UBUNTU-CVE-2019-20386","UBUNTU-CVE-2019-3843","UBUNTU-CVE-2019-3844","UBUNTU-CVE-2020-1712"],"upstream":["CVE-2018-16888","CVE-2019-20386","CVE-2019-3843","CVE-2019-3844","CVE-2020-1712","UBUNTU-CVE-2018-16888","UBUNTU-CVE-2019-20386","UBUNTU-CVE-2019-3843","UBUNTU-CVE-2019-3844","UBUNTU-CVE-2020-1712"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4269-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-16888"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-3843"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-3844"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20386"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-1712"}],"affected":[{"package":{"name":"systemd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/systemd@229-4ubuntu21.27?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"229-4ubuntu21.27"}]}],"versions":["225-1ubuntu9","227-2ubuntu1","227-2ubuntu2","228-1ubuntu2","228-2ubuntu1","228-2ubuntu2","228-3ubuntu1","228-4ubuntu1","228-4ubuntu2","228-5ubuntu1","228-5ubuntu2","228-5ubuntu3","228-6ubuntu1","229-1ubuntu2","229-1ubuntu4","229-2ubuntu1","229-3ubuntu1","229-3ubuntu2","229-4ubuntu1","229-4ubuntu4","229-4ubuntu5","229-4ubuntu6","229-4ubuntu7","229-4ubuntu8","229-4ubuntu10","229-4ubuntu11","229-4ubuntu12","229-4ubuntu13","229-4ubuntu16","229-4ubuntu17","229-4ubuntu19","229-4ubuntu20","229-4ubuntu21","229-4ubuntu21.1","229-4ubuntu21.2","229-4ubuntu21.3","229-4ubuntu21.4","229-4ubuntu21.5","229-4ubuntu21.6","229-4ubuntu21.8","229-4ubuntu21.9","229-4ubuntu21.10","229-4ubuntu21.15","229-4ubuntu21.16","229-4ubuntu21.17","229-4ubuntu21.19","229-4ubuntu21.21","229-4ubuntu21.22","229-4ubuntu21.23"],"ecosystem_specific":{"binaries":[{"binary_version":"229-4ubuntu21.27","binary_name":"libnss-myhostname"},{"binary_version":"229-4ubuntu21.27","binary_name":"libnss-mymachines"},{"binary_version":"229-4ubuntu21.27","binary_name":"libnss-resolve"},{"binary_version":"229-4ubuntu21.27","binary_name":"libpam-systemd"},{"binary_version":"229-4ubuntu21.27","binary_name":"libsystemd-dev"},{"binary_version":"229-4ubuntu21.27","binary_name":"libsystemd0"},{"binary_version":"229-4ubuntu21.27","binary_name":"libudev-dev"},{"binary_version":"229-4ubuntu21.27","binary_name":"libudev1"},{"binary_version":"229-4ubuntu21.27","binary_name":"systemd"},{"binary_version":"229-4ubuntu21.27","binary_name":"systemd-container"},{"binary_version":"229-4ubuntu21.27","binary_name":"systemd-coredump"},{"binary_version":"229-4ubuntu21.27","binary_name":"systemd-journal-remote"},{"binary_version":"229-4ubuntu21.27","binary_name":"systemd-sysv"},{"binary_version":"229-4ubuntu21.27","binary_name":"udev"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2018-16888"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-20386"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-1712"}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4269-1.json"}},{"package":{"name":"systemd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/systemd@237-3ubuntu10.38?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"237-3ubuntu10.38"}]}],"versions":["234-2ubuntu12","235-2ubuntu3","235-3ubuntu2","235-3ubuntu3","237-3ubuntu3","237-3ubuntu4","237-3ubuntu6","237-3ubuntu7","237-3ubuntu8","237-3ubuntu10","237-3ubuntu10.2","237-3ubuntu10.3","237-3ubuntu10.4","237-3ubuntu10.6","237-3ubuntu10.9","237-3ubuntu10.11","237-3ubuntu10.12","237-3ubuntu10.13","237-3ubuntu10.15","237-3ubuntu10.17","237-3ubuntu10.19","237-3ubuntu10.20","237-3ubuntu10.21","237-3ubuntu10.22","237-3ubuntu10.23","237-3ubuntu10.24","237-3ubuntu10.25","237-3ubuntu10.26","237-3ubuntu10.28","237-3ubuntu10.29","237-3ubuntu10.31","237-3ubuntu10.33"],"ecosystem_specific":{"binaries":[{"binary_version":"237-3ubuntu10.38","binary_name":"libnss-myhostname"},{"binary_version":"237-3ubuntu10.38","binary_name":"libnss-mymachines"},{"binary_version":"237-3ubuntu10.38","binary_name":"libnss-resolve"},{"binary_version":"237-3ubuntu10.38","binary_name":"libnss-systemd"},{"binary_version":"237-3ubuntu10.38","binary_name":"libpam-systemd"},{"binary_version":"237-3ubuntu10.38","binary_name":"libsystemd-dev"},{"binary_version":"237-3ubuntu10.38","binary_name":"libsystemd0"},{"binary_version":"237-3ubuntu10.38","binary_name":"libudev-dev"},{"binary_version":"237-3ubuntu10.38","binary_name":"libudev1"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd-container"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd-coredump"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd-journal-remote"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd-sysv"},{"binary_version":"237-3ubuntu10.38","binary_name":"systemd-tests"},{"binary_version":"237-3ubuntu10.38","binary_name":"udev"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-3843"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-3844"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-20386"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-1712"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4269-1.json"}}],"schema_version":"1.7.3"}