This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2019-15718 →

DEBIAN-CVE-2019-15718

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)...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"242-7"}]}]

Debian:13 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"242-7"}]}]

Debian:14 systemd

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"242-7"}]}]

References

advisory security-tracker.debian.org