htop does not filter non-printable characters in process names

htop 0.7 writes process names to a terminal without sanitizing non-printable characters, which might allow local users to hide processes, modify arbitrary files, or have unspecified other impact via a process name with "crazy control strings."

An issue in htop-dev htop v.2.20 allows a local attacker to cause an out-of-bounds access in the Header_populateFromSettings function.