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NULL Pointer Dereference Affecting libxml2-python package, versions <0:2.9.1-6.el7.4

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 2.92% (91st percentile)
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NVD
7.5 high
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SUSE
5.3 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-CENTOS7-LIBXML2PYTHON-2164932
  • published 26 Jul 2021
  • disclosed 18 Jun 2018
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Introduced: 18 Jun 2018

CVE-2018-14404 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Centos:7 libxml2-python to version 0:2.9.1-6.el7.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-python package and not the libxml2-python package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.