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CVE details

CVE-2021-46143

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.

Score
8.1 high
Published
2022-01-06
Links
NVD · cve.org

Affected ports (2)

PortPackageVersionStatusMaintainer
textproc/linux-c7-expatlinux-c7-expat2.1.0_5unaddressedemulation@FreeBSD.org
textproc/linux-c7-expat-devellinux-c7-expat-devel2.1.0_1unaddressedemulation@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>linux-c7-expat</name>
	<range><lt>2.4.3</lt></range>
      </package>
      <package>
	<name>linux-c7-expat-devel</name>
	<range><lt>2.4.3</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an
	integer overflow exists for m_groupSize.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2021-46143</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2021-46143</url>
    </references>
    <dates>
      <discovery>2022-01-06</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>