Provide references for CVE-2018-6335.
Where can I find more information about CVE-2018-6335?
References are available at: https://hhvm.com/blog/2018/05/04/hhvm-3.25.3.html, https://github.com/facebook/hhvm/commit/4cb57dd753a339654ca464c139db9871fe961d56.