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Use After Free Affecting nokogiri package, versions <1.13.2

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.41% (74th percentile)
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NVD
7.5 high
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SUSE
7 high
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Red Hat
8.1 high

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  • Snyk ID SNYK-RUBY-NOKOGIRI-2413994
  • published 23 Feb 2022
  • disclosed 20 Feb 2022
  • credit Shinji Sato
Report a new vulnerability Found a mistake?

Introduced: 20 Feb 2022

CVE-2022-23308 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade nokogiri to version 1.13.2 or higher.

Overview

nokogiri is a gem for parsing HTML, XML, SAX, and Reader.

Affected versions of this package are vulnerable to Use After Free via the ID and IDREF attributes, when using the xmlReader interface with validation or when a document is parsed with XML_PARSE_DTDVALID and without XML_PARSE_NOENT. This can lead to the value of ID attributes to not be normalized after potentially expanding entities in xmlRemoveID, which will cause later calls to xmlGetID to return a pointer to previously freed memory.