> If the Debian release supports installation of older OpenSSLs, please
> that as a solution, otherwise, I suspect that it will take some time --
> unless someone comes up with a patch, in which case, I will attempt to
> hire that person :-)
Debian 8/Jessie contains OpenSSL 1.0.1t (or a backported 1.0.2l if
needed) so everything is fine there.
Debian 9/Stretch contains both OpenSSL 1.0.2l and 1.1.0f. Bacula is
compiled and linked with the 1.0-variant of OpenSSL.
Debian 10/Buster (to be released in mid 2019) will only contain one
OpenSSL release, version 1.1+.
Somewhere between now and the end of 2018 there will be a moment where
OpenSSL-1.0.x will be removed from Debian and every software not adapted
will fail to compile and be subsequently removed from Debian Testing,
the next release-to-be, until it is patched or updated to compile with
the newer OpenSSL.