NULL Pointer Dereference Affecting libxml2 package, versions <2.9.1+dfsg1-5+deb8u7


0.0
high

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 2.08% (89th 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-DEBIAN8-LIBXML2-429563
  • published 22 Jul 2018
  • disclosed 19 Jul 2018

How to fix?

Upgrade Debian:8 libxml2 to version 2.9.1+dfsg1-5+deb8u7 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:8 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.