system
Provide references for <CVE-2015-1621>.
user
Where can I find more information about <CVE-2015-1621>?
assistant
References are available at: https://www.drupal.org/node/2423681, http://www.openwall.com/lists/oss-security/2015/02/13/12, https://www.drupal.org/node/2424405.