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 an invalid free error in the SDL function SDL_SetError_REAL at SDL_error.c.
bugzilla.libsdl.org/show_bug.cgi?id=4625
lists.debian.org/debian-lts-announce/2019/07/msg00021.html
lists.debian.org/debian-lts-announce/2019/07/msg00026.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6FDFPYUJ7YPY3XB5U75VJHBSVRVIKO/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJ2VRD57UOBT72JUC2DIFHEFCH4N64SW/
usn.ubuntu.com/4238-1/