CVSS 3.1
4.4 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NCVE-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), 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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- redhat:enterprise_linux
- redhat:enterprise_linux_eus
- redhat:enterprise_linux_for_ibm_z_systems_8_s390x
- redhat:enterprise_linux_for_ibm_z_systems_eus
- redhat:enterprise_linux_for_ibm_z_systems_eus_s390x
- redhat:enterprise_linux_for_power_little_endian
- redhat:enterprise_linux_for_power_little_endian_eus
- redhat:enterprise_linux_server_aus
- redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions
- redhat:enterprise_linux_server_tus
- redhat:enterprise_linux_server_update_services_for_sap_solutions
- redhat:openshift_container_platform
- systemd_project:systemd
References
- http://www.openwall.com/lists/oss-security/2019/09/03/1
- https://access.redhat.com/errata/RHSA-2019:3592
- https://access.redhat.com/errata/RHSA-2019:3941
- https://bugzilla.redhat.com/show_bug.cgi?id=1746057
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRE5IS24XTF5WNZGH2L7GSQJKARBOEGL/