SDL (Simple DirectMedia Layer) through 2.0.12 has a heap-based buffer over-read in Blit_3or4_to_3or4__inversed_rgb in video/SDL_blit_N.c via a crafted .BMP file.
Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:LI:NA:L5.4/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L