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Resource Exhaustion Affecting libxml2-python package, versions <0:2.9.1-6.el7.4

medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 1.73% (88th percentile)
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NVD
6.5 medium
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Red Hat
3.5 low

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  • Snyk ID SNYK-CENTOS7-LIBXML2PYTHON-2164269
  • published 26 Jul 2021
  • disclosed 7 Sep 2017
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Introduced: 7 Sep 2017

CVE-2017-18258 Open this link in a new tab
CWE-400 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.

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.