SDL (Simple DirectMedia Layer) through 1.2.15 and 2.x through 2.0.9 has a heap-based buffer over-read in BlitNtoN in video/SDL_blit_N.c when called from SDL_SoftBlit in video/SDL_blit.c.
https://usn.ubuntu.com/4238-1/
https://usn.ubuntu.com/4156-2/
https://usn.ubuntu.com/4156-1/
https://security.gentoo.org/glsa/202305-17
https://lists.debian.org/debian-lts-announce/2023/02/msg00008.html
https://lists.debian.org/debian-lts-announce/2021/10/msg00032.html
https://lists.debian.org/debian-lts-announce/2021/01/msg00024.html
https://bugzilla.libsdl.org/show_bug.cgi?id=4538
https://access.redhat.com/errata/RHSA-2020:0293
https://access.redhat.com/errata/RHSA-2019:3951
https://access.redhat.com/errata/RHSA-2019:3950
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00094.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00093.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00014.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00012.html