CVE-2021-23556: Command injection in guake

Guake is a drop-down terminal for GNOME. The package guake before 3.8.5 is vulnerable to Exposed Dangerous Method or Function due to the exposure of execute_command and execute_command_by_uuid methods via the d-bus interface, which makes it possible for a malicious user to run an arbitrary command via the d-bus method. Note: Exploitation requires the user to have installed another malicious program that will be able to send dbus signals or run terminal commands.