CVE-2018-20481

NameCVE-2018-20481
DescriptionXRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries, which allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1706-1, DLA-2287-1
NVD severitymedium
Debian Bugs917325

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
poppler (PTS)stretch0.48.0-2+deb9u2vulnerable
stretch (security)0.48.0-2+deb9u4fixed
buster0.71.0-5fixed
bullseye20.09.0-3.1fixed
bookworm, sid22.02.0-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
popplersourcejessie0.26.5-2+deb8u8DLA-1706-1
popplersourcestretch0.48.0-2+deb9u3DLA-2287-1
popplersource(unstable)0.71.0-4low917325

Notes

https://gitlab.freedesktop.org/poppler/poppler/issues/692
Proposed fix: https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143
https://gitlab.freedesktop.org/poppler/poppler/commit/39a251b1b3a3343400a08e2f03c5518a26624626

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