On Sun, Mar 22, 2015 at 12:45:05AM +0100, ?ukasz W?sikowski wrote:
> This bug is hard to reproduce - smtpd (and smtp also) crashes only when
> communicating with certain hosts (for example ebay in my case). I also
> saw this problem when this FreeBSD was trying to send e-mail to my other
> mail server (running current version of Linux Gentoo). I will try to
> reproduce that.
I have it crashing consistently. It is sufficient for the client
to offer compression. For that to happen this is enough:
/usr/local/bin/openssl s_client -no_ssl2 -cipher aNULL -connect
127.0.0.1:2525
SSLv2 is disabled to allow the client to send the compression
methods extension. The client needs to be compiled with compression
support and not explicitly disable compression.
My guess is that most MTAs either have libraries that don't support
compression, or have left SSLv2 enabled, or have disabled compression.
--
Viktor.
