Provide references for CVE-2021-21704.
Where can I find more information about CVE-2021-21704?
References are available at: https://bugs.php.net/bug.php?id=76448, https://bugs.php.net/bug.php?id=76449, https://bugs.php.net/bug.php?id=76450, https://bugs.php.net/bug.php?id=76452, https://security.netapp.com/advisory/ntap-20211029-0006/, https://security.gentoo.org/glsa/202209-20.