Provide references for CVE-2019-3561.
Where can I find more information about CVE-2019-3561?
References are available at: https://github.com/facebook/hhvm/commit/46003b4ab564b2abcd8470035fc324fe36aa8c75, https://hhvm.com/blog/2019/04/03/hhvm-4.0.4.html.