CVE-2018-9918

Name	CVE-2018-9918
Description	libqpdf.a in QPDF through 8.0.2 mishandles certain "expected dictionary key but found non-name object" cases, allowing remote attackers to cause a denial of service (stack exhaustion), related to the QPDFObjectHandle and QPDF_Dictionary classes, because nesting in direct objects is not restricted.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	ELA-942-1
Debian Bugs	895443

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qpdf (PTS)	jessie	5.1.2-2	vulnerable
	stretch (lts), stretch	6.0.0-2+deb9u2	fixed
	buster (security), buster, buster (lts)	8.4.0-2+deb10u1	fixed
	bullseye	10.1.0-1	fixed
	bookworm	11.3.0-1+deb12u1	fixed
	sid, trixie	11.9.1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
qpdf	source	stretch	6.0.0-2+deb9u1		ELA-942-1
qpdf	source	(unstable)	8.0.2-3			895443

Notes

[stretch] - qpdf <no-dsa> (Minor issue)
[jessie] - qpdf <no-dsa> (Minor issue)
[wheezy] - qpdf <no-dsa> (Minor issue)
https://github.com/qpdf/qpdf/issues/202