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Inappropriate Encoding for Output Context Affecting expat package, versions <0:2.1.0-12.27.amzn1

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 1.47% (87th percentile)
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NVD
9.8 critical
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SUSE
7.5 high
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Red Hat
9.8 critical

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  • Snyk ID SNYK-AMZN201803-EXPAT-2421162
  • published 11 Mar 2022
  • disclosed 16 Feb 2022
Report a new vulnerability Found a mistake?

Introduced: 16 Feb 2022

CVE-2022-25235 Open this link in a new tab
CWE-838 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 expat to version 0:2.1.0-12.27.amzn1 or higher.
This issue was patched in ALAS-2022-1573.

NVD Description

Note: Versions mentioned in the description apply only to the upstream expat package and not the expat package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

References