CVE-2018-20481
CVSS v3
6.5
MEDIUM
EPSS Score
3.4 %
exploit probability, as of 2026-10-18
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc
poppler.src as a component of Red Hat Enterprise Linux 5 · poppler as a component of Red Hat Enterprise Linux 6 · poppler-devel as a component of Red Hat Enterprise Linux 6
Red Hat Security Advisory: poppler security update
Red Hat Security Advisory: poppler security, bug fix, and enhancement update
Description
XRef::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.
Technical details
- Published
- 2018-12-26
Frequently asked questions
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