iTunes Music Sharing must be disabled. When iTunes Music Sharing is enabled, the computer starts a network listening service that shares the contents of the user's music collection with other users in the same subnet. Unnecessary network services should always be disabled because they increase the attack surface of the system. Disabling iTunes Music Sharing mitigates this risk.
It can be dangerous to allow the execution of binaries from world-writable temporary storage directories such as /run/shm. The noexec mount option prevents binaries from being executed out of /run/shm.