CVE-2018-20481 — NULL Pointer Dereference in Poppler

CWE-476 — NULL Pointer Dereference11 documents8 sources
Severity
6.5MEDIUMNVD
EPSS
1.2%
top 21.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Freedesktop PopplerCanonical Ubuntu LinuxDebian Linux
Timeline
PublishedDec 26
Latest updateMay 13

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶Debianfreedesktop/poppler< 0.71.0-4+3
▶Ubuntufreedesktop/poppler< 0.24.5-2ubuntu4.15+2

Also affects: Debian Linux 8.0, Ubuntu Linux 14.04, 16.04, 18.04, 18.10

Patches

Patch: gitlab.freedesktop.org ↗Patch: gitlab.freedesktop.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-hw98-2857-jggj: XRef::getEntry in XRef↗2022-05-13
▶
OSV
poppler vulnerabilities↗2019-01-22
▶
OSV
CVE-2018-20481: XRef::getEntry in XRef↗2018-12-26
▶
CVEList
CVE-2018-20481: XRef::getEntry in XRef↗2018-12-26
▶

📋Vendor Advisories

3
Ubuntu
poppler vulnerabilities↗2019-01-22
▶
Red Hat
poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc↗2018-12-20
▶
Debian
CVE-2018-20481: poppler - XRef::getEntry in XRef.cc in Poppler 0.72.0 mishandles unallocated XRef entries,...↗2018
▶

💬Community

3
Bugzilla
CVE-2018-20481 poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc [fedora-all]↗2019-01-10
▶
Bugzilla
CVE-2018-20481 poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc↗2019-01-10
▶
Bugzilla
CVE-2018-20481 mingw-poppler: poppler: NULL pointer dereference in the XRef::getEntry in XRef.cc [fedora-all]↗2019-01-10
▶
CVE-2018-20481 — NULL Pointer Dereference in Poppler | cvebase