Provide references for CVE-2016-6872.
Where can I find more information about CVE-2016-6872?
References are available at: http://www.openwall.com/lists/oss-security/2016/08/11/1, https://github.com/facebook/hhvm/commit/2c9a8fcc73a151608634d3e712973d192027c271, http://www.openwall.com/lists/oss-security/2016/08/19/1.