CVE-2018-18020

NameCVE-2018-18020
DescriptionIn QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3548-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qpdf (PTS)bullseye10.1.0-1fixed
bookworm11.3.0-1+deb12u1fixed
sid, trixie11.9.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qpdfsourcebuster8.4.0-2+deb10u1DLA-3548-1
qpdfsource(unstable)9.0.0-1

Notes

[stretch] - qpdf <no-dsa> (Minor issue)
[jessie] - qpdf <no-dsa> (Minor issue)
https://github.com/qpdf/qpdf/issues/243
https://github.com/qpdf/qpdf/commit/cf469d789024cdda41684f1ea48b41829b98c242

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