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Out-of-Bounds Affecting libxml2 package, versions <2.9.4+dfsg1-2.2+deb9u1

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.6% (79th percentile)
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NVD
9.8 critical
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN9-LIBXML2-429717
  • published 23 Nov 2017
  • disclosed 23 Nov 2017
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Introduced: 23 Nov 2017

CVE-2017-16931 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:9 libxml2 to version 2.9.4+dfsg1-2.2+deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.