This update for SDL fixes the following issues: - CVE-2020-14409: Fixed an integer overflow in SDL_BlitCopy in video/SDL_blit_copy.c. - CVE-2020-14410: Fixed a heap-based buffer over-read in Blit_3or4_to_3or4__inversed_rgb in video/SDL_blit_N.c. - CVE-2021-33657: Fixed a Heap overflow problem in video/SDL_pixels.c