CVE-2019-15718
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
Description
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-15718
Vendor advisory: arch — https://security.archlinux.org/ASA-201910-3
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 243.0-1 | |
| debian | bookworm | fixed | 242-7 |
| debian | bullseye | fixed | 242-7 |
| debian | forky | fixed | 242-7 |
| debian | sid | fixed | 242-7 |
| debian | trixie | fixed | 242-7 |
References
Verify integrity in audit chain (admin only). AS-IS.