>>>>> On Sun, 02 May 2021, Fabian Groffen wrote:

> Title: Exim >=4.94 disallows tainted variables in transport configurations

Title is too long (GLEP 42 allows 50 chars max).

> Author: Fabian Groffen <[email protected]>
> Posted: 2021-05-??
> Revision: 1
> News-Item-Format: 2.0
> Display-If-Installed: mail-mta/exim

> Since the release of Exim-4.94, transports refuse to use tainted data in
> constructing a delivery location.  If you use this in your transports,
> your configuration will break, causing errors and possible downtime.

> Particularly, the use of $local_part in any transport, should likely be
> updated with $local_part_data.  Check your local_delivery transport,
> which historically used $local_part.

> Unfortunately there is not much documentation on "tainted" data for
> Exim[1], and to resolve this, non-official sources need to be used, such
> as [2] and [3].

I have no idea what this news item is trying to tell me. But I don't use
Exim, so probably that's the reason. :) Maybe mention at least that Exim
is a mailer?

Ulrich

> [1] https://lists.exim.org/lurker/message/20201109.222746.24ea3904.en.html
> [2] https://mox.sh/sysadmin/tainted-filename-errors-in-exim-4.94/
> [3] 
> https://jimbobmcgee.wordpress.com/2020/07/29/de-tainting-exim-configuration-variables/

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