CVE-2018-20662

Name: CVE-2018-20662
Creator: NVD / NIST
Published: 2019-01-03T13:29:00.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 2.24%

Last modified Jun 17, 2026

CVE-2018-20662 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, because of a wrong return value from PDFDoc::setup) by crafting a PDF file in which an xref data structure is mishandled during extractPDFSubtype processing.. EPSS estimates a 2.24% chance of exploitation in the next 30 days.

Description

In Poppler 0.72.0, PDFDoc::setup in PDFDoc.cc allows attackers to cause a denial-of-service (application crash caused by Object.h SIGABRT, because of a wrong return value from PDFDoc::setup) by crafting a PDF file in which an xref data structure is mishandled during extractPDFSubtype processing.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

2.24%

80.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Freedesktop	Poppler	0.72.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Fedoraproject	Fedora	28
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04
Canonical	Ubuntu Linux	18.10
Canonical	Ubuntu Linux	19.04
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Eus	8.1
Redhat	Enterprise Linux Eus	8.2
Redhat	Enterprise Linux Eus	8.4
Redhat	Enterprise Linux Eus	8.6
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	8.2
Redhat	Enterprise Linux Server Aus	8.4
Redhat	Enterprise Linux Server Aus	8.6
Redhat	Enterprise Linux Server Tus	8.2
Redhat	Enterprise Linux Server Tus	8.4
Redhat	Enterprise Linux Server Tus	8.6
Redhat	Enterprise Linux Workstation	7.0

References

https://access.redhat.com/errata/RHSA-2019:2022Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2713Third Party Advisory
https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5fPatch, Third Party Advisory
https://gitlab.freedesktop.org/poppler/poppler/issues/706Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00008.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00014.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OSCOYM3AMFFBJWSBWY6VJVLNE5JD7YS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BI7NLDN2HUEU4ZW3D7XPHOAEGT2CKDRO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQ6RABASMSIMMWMDZTP6ZWUWZPTBSVB5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWP5XSUG6GNRI75NYKF53KIB2CZY6QQ6/
https://usn.ubuntu.com/4042-1/Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2022Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2713Third Party Advisory
https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5fPatch, Third Party Advisory
https://gitlab.freedesktop.org/poppler/poppler/issues/706Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00008.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00014.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6OSCOYM3AMFFBJWSBWY6VJVLNE5JD7YS/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BI7NLDN2HUEU4ZW3D7XPHOAEGT2CKDRO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQ6RABASMSIMMWMDZTP6ZWUWZPTBSVB5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWP5XSUG6GNRI75NYKF53KIB2CZY6QQ6/
https://usn.ubuntu.com/4042-1/Third Party Advisory

Timeline

Published: Jan 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20662?

How severe is CVE-2018-20662?

CVE-2018-20662 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 2.24% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20662?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20662?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST