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NULL Pointer Dereference Affecting libxml2 package, versions <0:2.9.7-7.0.1.el8

Severity

 Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
2.51% (91st percentile)

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  • Snyk IDSNYK-ORACLE8-LIBXML2-2555966
  • published10 Apr 2022
  • disclosed19 Jul 2018
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Introduced: 19 Jul 2018

CVE-2018-14404  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:8 libxml2 to version 0:2.9.7-7.0.1.el8 or higher.
This issue was patched in ELSA-2020-1827.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Oracle. See How to fix? for Oracle: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.