This snapshot of the upstream development branch (6.0) of qpdf fixes several infinite loop vulnerabilities: CVE-2017-9208, CVE-2017-9209, CVE-2017-9210, CVE-2017-11624, CVE-2017-11625, CVE-2017-11626, CVE-2017-11627.
For Mageia 5, the cups-filters package was also rebuilt against this new major version of qpdf.