Doveadm error since 2.3.11.3 when run as unprivileged user

[Timo Sirainen]

On 13. Aug 2020, at 11.00, Arjen de Korte <build+dovecot at de-korte.org> wrote:
> 
> I allow users to run 'doveadm' for mailbox maintenance (to expunge mail for instance). Since the upgrade to 2.3.11.3, this no longer works and results in the following error message:
> 
> doveconf: Fatal: Error in configuration file /etc/dovecot/conf.d/10-ssl.conf line 13: ssl_key: Can't open file /etc/ssl/private/de-korte.org.key: Permission denied
> 
> This is no surprise, as non-privileged users are not allowed to read the private keys of the server. Question is, why is doveadm trying to read this key in the first place (it is not needed for mailbox maintenance) and why is it failing now?

There were some ssl setting handling cleanups in v2.3.11, which caused this. I guess the proper fix for this would be to split SSL client settings and SSL server settings. So doveadm would still read the SSL client settings without trying to read the SSL server settings and failing there.