If you run Exim connected to the Internet or local with untrusted users, you should either patch now or shut it down.
@_xhr_ ...and this is why sysadmins don't let fellow sysadmins run Exim. The biggest hurdle is that Debian ships it as the “by default” MTA. Amusingly, some historical justifications were that it's simpler than alternatives, but in practice... well, it's probably only simpler than Sendmail by now, and as complex as Postfix at least
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