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Use After Free Affecting expat package, versions <0:2.2.5-10.el8_7.1

medium

Snyk CVSS

    Attack Complexity Low
    Availability High
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NVD
7.5 high
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Red Hat
7.5 high
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SUSE
8.1 high

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  • Snyk ID SNYK-CENTOS8-EXPAT-3104723
  • published 4 Nov 2022
  • disclosed 24 Oct 2022
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Introduced: 24 Oct 2022

CVE-2022-43680 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Centos:8 expat to version 0:2.2.5-10.el8_7.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Centos:8. See How to fix? for Centos:8 relevant fixed versions and status.

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.