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CVE details

CVE-2014-3660

parser.c in libxml2 before 2.9.2 does not properly prevent entity expansion even when entity substitution has been disabled, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted XML document containing a large number of nested entity references, a variant of the "billion laughs" attack.

Score
5.0 medium
Published
2014-11-04
Links
NVD · cve.org

Affected ports (1)

PortPackageVersionStatusMaintainer
textproc/linux-c7-libxml2linux-c7-libxml22.9.1_4unaddressedemulation@FreeBSD.org

VuXML

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-libxml2</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>parser.c in libxml2 before 2.9.2 does not properly prevent entity
	expansion even when entity substitution has been disabled, which
	allows context-dependent attackers to cause a denial of service (CPU
	consumption) via a crafted XML document containing a large number of
	nested entity references, a variant of the "billion laughs" attack.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2014-3660</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2014-3660</url>
    </references>
    <dates>
      <discovery>2014-11-04</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>