Provide references for CVE-2021-21703.
Where can I find more information about CVE-2021-21703?
References are available at: https://bugs.php.net/bug.php?id=81026, https://www.debian.org/security/2021/dsa-4992, https://www.debian.org/security/2021/dsa-4993, http://www.openwall.com/lists/oss-security/2021/10/26/7, https://lists.debian.org/debian-lts-announce/2021/10/msg00021.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JO5RA6YOBGGGKLIA6F6BQRZDDECF5L3R/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PBM3KKB3RY2YPOKNMC4HIH7IH3T3WC74/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6PZVLICZUJMXOGWOUWSBAEGIVTF6Y6V3/, https://www.oracle.com/security-alerts/cpujan2022.html, https://security.netapp.com/advisory/ntap-20211118-0003/, https://www.oracle.com/security-alerts/cpuapr2022.html, https://security.gentoo.org/glsa/202209-20.