Provide references for CVE-2019-3569.
Where can I find more information about CVE-2019-3569?
References are available at: https://github.com/facebook/hhvm/commit/97ef580ec2cca9a54da6f9bd9fdd9a455f6d74ed, https://hhvm.com/blog/2019/06/10/hhvm-4.9.0.html.