Provide references for CVE-2021-21707.
Where can I find more information about CVE-2021-21707?
References are available at: https://bugs.php.net/bug.php?id=79971, https://security.netapp.com/advisory/ntap-20211223-0005/, https://www.debian.org/security/2022/dsa-5082, https://www.tenable.com/security/tns-2022-09, https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html.