NULL pointer dereference in Poppler - CVE-2018-20481

Vulnerability identifier: #VU16709

CSH Severity: Low

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-20481

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when XRef::getEntry in XRef.cc mishandles unallocated XRef entries. A remote attacker can trigger denial of service conditions via a specially crafted PDF document, when XRefEntry::setFlag in XRef.h is called from Parser::makeStream in Parser.cc.

Poppler
Amazon Linux AMI
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE CaaS Platform
SUSE Enterprise Storage
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for x86_64
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Workstation Extension
Fedora
poppler (Ubuntu package)
libpoppler44
libpoppler44-debuginfo
poppler-tools
libpoppler-qt4-4-debuginfo
libpoppler60-debuginfo
libpoppler-qt4-4
poppler-tools-debuginfo
libpoppler60
libpoppler-glib8-debuginfo
libpoppler-glib8
libpoppler-cpp0-debuginfo
libpoppler-cpp0
poppler-debugsource
libpoppler-devel
libpoppler-glib-devel
typelib-1_0-Poppler-0_18
libpoppler-qt4-devel
libpoppler73
libpoppler73-debuginfo
poppler
mingw-poppler

Install update from vendor's website.

poppler (Ubuntu package) - addressed in versions 0.24.5-2ubuntu4.15, 0.41.0-0ubuntu1.11, 0.62.0-2ubuntu2.6, 0.68.0-0ubuntu1.4
libpoppler44 - update to 0.24.4-14.26.1
libpoppler44-debuginfo - update to 0.24.4-14.26.1
poppler-tools - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-qt4-4-debuginfo - update to 0.43.0-16.25.1
libpoppler60-debuginfo - update to 0.43.0-16.25.1
libpoppler-qt4-4 - update to 0.43.0-16.25.1
poppler-tools-debuginfo - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler60 - update to 0.43.0-16.25.1
libpoppler-glib8-debuginfo - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-glib8 - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-cpp0-debuginfo - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-cpp0 - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
poppler-debugsource - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-devel - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-glib-devel - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
typelib-1_0-Poppler-0_18 - addressed in versions 0.43.0-16.25.1, 0.62.0-4.6.1
libpoppler-qt4-devel - update to 0.43.0-16.25.1
libpoppler73 - update to 0.62.0-4.6.1
libpoppler73-debuginfo - update to 0.62.0-4.6.1
poppler - addressed in versions 0.62.0-14.fc28, 0.67.0-10.fc29
mingw-poppler - update to 0.67.0-3.fc29

• https://gitlab.freedesktop.org/poppler/poppler/issues/692
• https://gitlab.freedesktop.org/poppler/poppler/merge_requests/143

• Denial of service in Poppler
• Ubuntu update for poppler
• Red Hat update for poppler
• Amazon Linux AMI update for poppler
• Red Hat update for poppler
• SUSE update for poppler
• SUSE update for poppler
• SUSE update for poppler
• Fedora 29 update for poppler
• Fedora 28 update for poppler
• Fedora 29 update for mingw-poppler