Redhat: >> Enterprise Linux For Ibm Z Systems Eus S390x >> 8.2 Security Vulnerabilities
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.
CVSS Score
4.4
EPSS Score
0.001
Published
2019-09-04