{"id":"UBUNTU-CVE-2013-5704","details":"The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass \"RequestHeader unset\" directives by placing a header in the trailer portion of data sent with chunked transfer coding.  NOTE: the vendor states \"this is not a security issue in httpd as such.\"","modified":"2026-04-22T09:24:18.093708Z","published":"2014-04-15T00:00:00Z","related":["USN-2523-1"],"upstream":["CVE-2013-5704"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-5704"},{"type":"REPORT","url":"http://martin.swende.se/blog/HTTPChunked.html"},{"type":"REPORT","url":"http://marc.info/?l=apache-httpd-dev&m=139636309822854&w=2"},{"type":"REPORT","url":"http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/CHANGES"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2523-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-5704"}],"affected":[{"package":{"name":"apache2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-1ubuntu4.4"}]}],"versions":["2.4.6-2ubuntu2","2.4.6-2ubuntu3","2.4.6-2ubuntu4","2.4.7-1ubuntu1","2.4.7-1ubuntu2","2.4.7-1ubuntu3","2.4.7-1ubuntu4","2.4.7-1ubuntu4.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-bin"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-data"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-mpm-event"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-mpm-itk"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-mpm-prefork"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-mpm-worker"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-suexec"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-suexec-custom"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-suexec-pristine"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2-utils"},{"binary_version":"2.4.7-1ubuntu4.4","binary_name":"apache2.2-bin"},{"binary_version":"1:2.4.7-1ubuntu4.4","binary_name":"libapache2-mod-macro"},{"binary_version":"1:2.4.7-1ubuntu4.4","binary_name":"libapache2-mod-proxy-html"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-5704.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"low"}]}