Provide references for CVE-2021-33657.
Where can I find more information about CVE-2021-33657?
References are available at: https://github.com/libsdl-org/SDL/commit/8c91cf7dba5193f5ce12d06db1336515851c9ee9, https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html, https://security.gentoo.org/glsa/202305-18, https://security.gentoo.org/glsa/202305-17.