Since this bug was filed, Ghostscript has received more scrutiny and serious bugs continue to be found. The recommendation of the researchers seems to be to disable and remove Ghostscript unless a Postcript interpreter is actually necessary. Barring that, we should keep our package up to date and try to make sure the GNOME thumbnailer and other "hidden" users of Ghostscript are run in containers. Is anyone willing to look into the GNOME thumbnailer?