I don't know much about dropbear but from your explanation it does indeed sound like this is an upstream OpenSSH bug that should be reported at https://bugzilla.mindrot.org/.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1966886 Title: ssh-copy-id and Dropbear Server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1966886/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs