CVE-2018-18456

NameCVE-2018-18456
DescriptionThe function Object::isName() in Object.h (called from Gfx::opSetFillColorN) in Xpdf 4.00 allows remote attackers to cause a denial of service (stack-based buffer over-read) via a crafted pdf file, as demonstrated by pdftoppm.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xpdf (PTS)buster3.04-13vulnerable (unimportant)
bullseye3.04+git20210103-3vulnerable (unimportant)
bookworm3.04+git20220601-1vulnerable (unimportant)
sid, trixie3.04+git20240202-1vulnerable (unimportant)

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xpdfsource(unstable)(unfixed)unimportant

Notes

https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217
https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm
no security impact, crash in CLI tool

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