libqpdf.a in QPDF allows attackers to cause a denial of service (infinite recursion and stack consumption) via a crafted PDF document, related to QPDFObjectHandle::parseInternal, aka qpdf-infiniteloop2. References: https://blogs.gentoo.org/ago/2017/05/21/qpdf-three-infinite-loop-in-libqpdf/
Created qpdf tracking bugs for this issue: Affects: fedora-all [bug 1454820]