Package: adduser
Version: 3.115
Severity: minor
The current default value for NAME_REGEX is ^[a-z][-a-z0-9_]*\$ (since version
3.111 reenabled underscores in all but the leading position). Historically,
adduser has allowed leading underscores from at least version 3.11.2 until
version 3.77, except for a brief hiatus in versions 3.61 and 3.62.
I understand why one may want to discourage leading digits in usernames, but
this restriction on leading underscores seems to have arosen by accident. I'm
therefore setting the severity to "minor" rather than "wishlist". ("minor"
because one can override this in /etc/adduser.conf, of course.)