Hi Roberto With the update of ghostscript in DLA 1792-1 for ghostscript pdfdict is hidden for the fix for CVE-2019-3839.
cups-filters used though this undocumented internal, so with the ghostscript update cups-filter will experience a functional regression. In unstable cups-filter was fixed shortly after the 9.27 update, for stable we issued a corresponding update for cups-filters following the ghostscript update as https://lists.debian.org/debian-security-announce/2019/msg00087.html . Thus I think you will need to issue same update for cups-filters as well for jessie to not use pdfdict but rather runpdfbegin. This way cups-filters will work both with a fixed and unfixed ghostscript. Please though double-check. Regards, Salvatore
