Provide references for CVE-2021-21408.
Where can I find more information about CVE-2021-21408?
References are available at: https://github.com/smarty-php/smarty/security/advisories/GHSA-4h9c-v5vg-5m6m, https://github.com/smarty-php/smarty/commit/19ae410bf56007a5ef24441cdc6414619cfaf664, https://github.com/smarty-php/smarty/releases/tag/v3.1.43, https://github.com/smarty-php/smarty/releases/tag/v4.0.3, https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html, https://www.debian.org/security/2022/dsa-5151, https://security.gentoo.org/glsa/202209-09, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/.