{"id":"UBUNTU-CVE-2019-15718","details":"In systemd 240, bus_open_system_watch_bind_with_description in shared/bus-util.c (as used by systemd-resolved to connect to the system D-Bus instance), calls sd_bus_set_trusted, which disables access controls for incoming D-Bus messages. An unprivileged user can exploit this by executing D-Bus methods that should be restricted to privileged users, in order to change the system's DNS resolver settings.","modified":"2026-04-22T12:11:40.649767Z","published":"2019-09-03T00:00:00Z","related":["USN-4120-1"],"upstream":["CVE-2019-15718"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-15718"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4120-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-15718"}],"affected":[{"package":{"name":"systemd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/systemd@237-3ubuntu10.28?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"237-3ubuntu10.28"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libnss-myhostname","binary_version":"237-3ubuntu10.28"},{"binary_name":"libnss-mymachines","binary_version":"237-3ubuntu10.28"},{"binary_version":"237-3ubuntu10.28","binary_name":"libnss-resolve"},{"binary_name":"libnss-systemd","binary_version":"237-3ubuntu10.28"},{"binary_name":"libpam-systemd","binary_version":"237-3ubuntu10.28"},{"binary_name":"libsystemd0","binary_version":"237-3ubuntu10.28"},{"binary_name":"libudev1","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd-container","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd-coredump","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd-journal-remote","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd-sysv","binary_version":"237-3ubuntu10.28"},{"binary_name":"systemd-tests","binary_version":"237-3ubuntu10.28"},{"binary_name":"udev","binary_version":"237-3ubuntu10.28"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-15718.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}