On Wed, 14 Jun 2023 16:34:39 +0200, Omar Polo wrote: > the `link-auth' event hash the user first and the result of the > operation after; this breaks when a username has a '|' character in > it. Since this is triggered by the `auth login' command, anyone could > send a user with a '|' and, depending on the filter used, make smtpd > exit. (if the filter dies, smtpd does too) > > This was reported on the OpenSMTPD-portable github repository with > Gilles' opensmtpd-filter-rspamd: > > https://github.com/OpenSMTPD/OpenSMTPD/issues/1213 > > Diff below is straightforward and includes the documentation changes. > I believe link-auth was forgotten in revision 1.61 of lka_filter.c > when the mail-from/rcpt-to events got their fields swapped.
OK millert@ - todd
