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CVE details

CVE-2013-0340

expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.

Score
6.8 medium
Published
2014-01-21
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

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-expat</name>
	<range><lt>2.4.0</lt></range>
      </package>
      <package>
	<name>linux-c7-expat-devel</name>
	<range><lt>2.4.0</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>expat before version 2.4.0 does not properly handle entities expansion
	unless an application developer uses the XML_SetEntityDeclHandler
	function, which allows remote attackers to cause a denial of service
	(resource consumption), send HTTP requests to intranet servers, or
	read arbitrary files via a crafted XML document, aka an XML External
	Entity (XXE) issue.  NOTE: it could be argued that because expat
	already provides the ability to disable external entity expansion, the
	responsibility for resolving this issue lies with application
	developers; according to this argument, this entry should be REJECTed,
	and each affected application would need its own CVE.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2013-0340</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2013-0340</url>
    </references>
    <dates>
      <discovery>2014-01-21</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>