Fixed
Created: Sep 4, 2019
Updated: May 13, 2022
Resolved Date: Nov 3, 2019
Found In Version: 10.18.44.1
Fix Version: 10.18.44.12
Severity: Standard
Applicable for: Wind River Linux LTS 18
Component/s: Userspace
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.
CREATE(Triage):(User=admin) CVE-2019-15718 (https://nvd.nist.gov/vuln/detail/CVE-2019-15718)
