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CVE-2019-15718

Published: 3 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: 4.4

Status

Package Release Status
systemd
Launchpad, Ubuntu, Debian
bionic
Released (237-3ubuntu10.28)
disco
Released (240-6ubuntu5.6)
precise Does not exist

trusty Not vulnerable

upstream
Released (243)
xenial Not vulnerable