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Uncontrolled Recursion Affecting libxml2 package, versions <0:2.7.6-21.el6_8.1

high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 1.09% (85th percentile)
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NVD
7.5 high
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Red Hat
4.3 medium

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  • Snyk ID SNYK-CENTOS6-LIBXML2-2134140
  • published 26 Jul 2021
  • disclosed 3 May 2016
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Introduced: 3 May 2016

CVE-2016-3705 Open this link in a new tab
CWE-674 Open this link in a new tab

How to fix?

Upgrade Centos:6 libxml2 to version 0:2.7.6-21.el6_8.1 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 Centos. See How to fix? for Centos:6 relevant fixed versions and status.

The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.

References