Provide references for CVE-2016-6871.
Where can I find more information about CVE-2016-6871?
References are available at: http://www.openwall.com/lists/oss-security/2016/08/11/1, https://github.com/facebook/hhvm/commit/c00fc9d3003eb06226b58b6a48555f1456ee2475, http://www.openwall.com/lists/oss-security/2016/08/19/1.