In the mintupload package through 4.2.0 for Linux Mint, service-name mishandling leads to command injection via shell metacharacters in che…

In the mintupload package through 4.2.0 for Linux Mint, service-name mishandling leads to command injection via shell metacharacters in check_connection, drop_data_received_cb, and Service.remove. A user can modify a service name in a ~/.linuxmint/mintUpload/services/service file.