Simone Margaritelli reported several vulnerabilities in cups-filters.
Missing validation of IPP attributes returned from an IPP server and
multiple bugs in the cups-browsed component can result in the execution
of arbitrary commands without authentication when a print job is
started.
Simone Margaritelli reported that cups, the Common UNIX Printing System,
does not properly sanitize IPP attributes when creating PPD files, which
may result in the execution of arbitrary code.