Bug#930648: exim4-daemon-heavy: Weird leakage of unrelated data like /etc/aliases into /var/spool/exim4/input/*-H

[Andreas Metzler]

On 2019-06-19 Bjoern Buerger <b.buerger at pengutronix.de> wrote:
> * Andreas Metzler (ametzler at bebt.de) [190618 19:15]:
[...] 
> > Could you try
> > a) disabling BDAT (set chunking_advertise_hosts = )
> > b) try a backport of sa-exim 4.2.1-17?

> > See #879687.

> We could give it a try, but I don't see the point.

Did you test it yet?

> Judging from the #879687 description I find it hard 
> to believe that large chunks of local files like 
> /etc/aliases (~100 lines) would end up in spool files 
> due to this bug. But maybe I don't see the whole 
> picture yet?

With BDAT some versions of sa-exim can misparse the spool-file and write
back invalid data.

cu Andreas