Dino before 2019-09-10 does not check roster push authorization in module/roster/module.vala.
https://www.debian.org/security/2019/dsa-4524
https://usn.ubuntu.com/4306-1/
https://seclists.org/bugtraq/2019/Sep/31
https://gultsch.de/dino_multiple.html
https://github.com/dino/dino/commit/dd33f5f949248d87d34f399e8846d5ee5b8823d9