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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), calls s…

Impact

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.

Affected products

VendorProductAffected versions
Systemd ProjectSystemd
Version 240
FedoraprojectFedora
Versions 29, 30, 31
RedhatOpenshift Container Platform
Version 4.1
RedhatEnterprise Linux
Version 8.0
RedhatEnterprise Linux Eus
Versions 8.1, 8.2, 8.4
RedhatEnterprise Linux For Ibm Z Systems 8 S390x
All versions
RedhatEnterprise Linux For Ibm Z Systems Eus
Versions 8.1, 8.2, 8.4
RedhatEnterprise Linux For Ibm Z Systems Eus S390x
Versions 8.1, 8.2
RedhatEnterprise Linux For Power Little Endian
Version 8.0
RedhatEnterprise Linux For Power Little Endian Eus
Versions 8.1, 8.2, 8.4
RedhatEnterprise Linux Server Aus
Versions 8.2, 8.4
RedhatEnterprise Linux Server For Power Little Endian Update Services For Sap Solutions
Versions 8.1, 8.2, 8.4

References