CVE-2019-20094

An issue was discovered in libsixel 1.8.4. There is a heap-based buffer overflow in the function gif_init_frame at fromgif.c.

CVE-2019-20205

libsixel 1.8.4 has an integer overflow in sixel_frame_resize in frame.c.

CVE-2022-27044

libsixel 1.8.6 is affected by Buffer Overflow in libsixel/src/quant.c:876.

CVE-2022-27046

libsixel 1.8.6 suffers from a Heap Use After Free vulnerability in in libsixel/src/dither.c:388.

CVE-2021-40656

libsixel before 1.10 is vulnerable to Buffer Overflow in libsixel/src/quant.c:867.

CVE-2021-41715

libsixel 1.10.0 is vulnerable to Use after free in libsixel/src/dither.c:379.

CVE-2020-21548

Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.

CVE-2019-20140

An issue was discovered in libsixel 1.8.4. There is a heap-based buffer overflow in the function gif_out_code at fromgif.c.

CVE-2020-21547

Libsixel 1.8.2 contains a heap-based buffer overflow in the dither_func_fs function in tosixel.c.

CVE-2019-19778

An issue was discovered in libsixel 1.8.2. There is a heap-based buffer over-read in the function load_sixel at loader.c.

CVE-2019-19777

stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has a heap-based buffer over-read in stbi__load_main.