Provide references for CVE-2017-8438.
Where can I find more information about CVE-2017-8438?
References are available at: https://discuss.elastic.co/t/elastic-stack-5-4-1-and-5-3-3-security-updates/87952, https://www.elastic.co/blog/elasticsearch-5-4-1-and-5-3-3-released, https://www.elastic.co/community/security.