vulnerability
Red Hat OpenShift: CVE-2019-15718: systemd: systemd-resolved allows unprivileged users to configure DNS
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:P/I:P/A:N) | Sep 4, 2019 | Dec 29, 2020 | Apr 11, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
Sep 4, 2019
Added
Dec 29, 2020
Modified
Apr 11, 2025
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.
Solution
linuxrpm-upgrade-redhat-coreos
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