https://bugs.exim.org/show_bug.cgi?id=1974
Phil Pennock <pdp@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|Exim 4.88 |Exim 4.89
Priority|medium |critical
CC| |pdp@???
Status|NEW |ASSIGNED
--- Comment #5 from Phil Pennock <pdp@???> ---
This is a DoS against Exim for any Exim which relays to a host which doesn't
support CHUNKING.
Exim never supplies the terminating dot on a line on its own. So the mail
builds up in Exim's queue, undeliverable. And this can be done by any remote
sender who can get mail accepted.
There are too many fully supported and sane scenarios where this breaks.
This is a release blocker for 4.89.
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