Provide references for CVE-2013-4227.
Where can I find more information about CVE-2013-4227?
References are available at: https://drupal.org/node/2059599, http://drupalcode.org/project/persona.git/commitdiff/fe0f9bb, http://www.openwall.com/lists/oss-security/2013/08/10/1, https://drupal.org/node/2058655.