CVE-2017-9209: Canonical Ubuntu Linux

Medium severity, CVSS 5.5. EPSS: 1.5% chance of exploitation in the next 30 days.

libqpdf.a in QPDF 6.0.0 allows remote attackers to cause a denial of service (infinite recursion and stack consumption) via a crafted PDF document, related to QPDFObjectHandle::parseInternal, aka qpdf-infiniteloop2.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 17.10 only
• Qpdf Project Qpdf: version 6.0.0 only

Published 2017-05-23. Last modified 2026-06-17.