An issue was discovered in libSDL2.a in Simple DirectMedia Layer (SDL) 2.0.9 when used in conjunction with libSDL2_image.a in SDL2_image 2.0.4. There is a NULL pointer dereference in the SDL stdio_read function in file/SDL_rwops.c.Referenceshttps://bugzilla.libsdl.org/show_bug.cgi?id=4626https://lists.debian.org/debian-lts-announce/2019/07/msg00021.htmlhttps://lists.debian.org/debian-lts-announce/2019/07/msg00026.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00012.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00029.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJ2VRD57UOBT72JUC2DIFHEFCH4N64SW/https://usn.ubuntu.com/4238-1/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6FDFPYUJ7YPY3XB5U75VJHBSVRVIKO/