CVE-2019-15718

Published: 03 September 2019

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.

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
Upstream
Released (243)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (237-3ubuntu10.28)
Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable