medium
6.5
CWE
20
Advisory Published
Updated

CVE-2018-20662: Input Validation

First published: Thu Jan 03 2019(Updated: )

A flaw was found in Poppler 0.72.0. The PDFDoc::setup class 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. References: <a href="https://gitlab.freedesktop.org/poppler/poppler/issues/706">https://gitlab.freedesktop.org/poppler/poppler/issues/706</a> Upstream Patch: <a href="https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f">https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f</a>

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
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
debian/poppler
20.09.0-3.1+deb11u1
22.12.0-2
24.08.0-2

Remedy

https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2018-20662.

  • What is the severity of CVE-2018-20662?

    The severity of CVE-2018-20662 is medium with a CVSS score of 6.5.

  • How does CVE-2018-20662 impact Poppler?

    CVE-2018-20662 allows attackers to cause a denial-of-service (application crash) in Poppler 0.72.0.

  • How can I fix the CVE-2018-20662 vulnerability?

    To fix the CVE-2018-20662 vulnerability, update Poppler to version 0.71.0-5 or later.

  • Where can I find more information about CVE-2018-20662?

    You can find more information about CVE-2018-20662 in the references provided: [GitLab commit](https://gitlab.freedesktop.org/poppler/poppler/commit/9fd5ec0e6e5f763b190f2a55ceb5427cfe851d5f), [GitLab issue](https://gitlab.freedesktop.org/poppler/poppler/issues/706), [Fedora mailing list](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWP5XSUG6GNRI75NYKF53KIB2CZY6QQ6/).

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