Provide references for CVE-2015-7879.
Where can I find more information about CVE-2015-7879?
References are available at: http://www.securityfocus.com/bid/77022, https://www.drupal.org/node/2581997, http://www.openwall.com/lists/oss-security/2015/10/21/2, https://www.drupal.org/node/2581519.