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Heap-based Buffer Overflow Affecting libxml2 package, versions <0:2.9.1-6.el7_2.2

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.62% (79th percentile)
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NVD
6.3 medium
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Red Hat
4.3 medium

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  • Snyk ID SNYK-CENTOS7-LIBXML2-2056852
  • published 26 Jul 2021
  • disclosed 22 Oct 2015
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Introduced: 22 Oct 2015

CVE-2015-7942 Open this link in a new tab
CWE-122 Open this link in a new tab

How to fix?

Upgrade Centos:7 libxml2 to version 0:2.9.1-6.el7_2.2 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:7 relevant fixed versions and status.

The xmlParseConditionalSections function in parser.c in libxml2 does not properly skip intermediary entities when it stops parsing invalid input, which allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via crafted XML data, a different vulnerability than CVE-2015-7941.

References