The Tor Browser AppArmor profile has
capability sys_chroot, and
ptrace. This looks pretty insecure.
ptrace will allow the Tor Browser to modify and inspect other running processes.
sys_admin will allow the Tor Browser to do a whole load of things that it probably shouldn’t be able to.
sys_chroot will allow the Tor Browser to chroot which can make an attacker able to put a setuid program inside a chroot jail with a fake /etc/passwd and /etc/shadow which can fool it into giving it root access.
Are these needed for anything? I think they should be removed.