20 issues skipped by the security teams:
- 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-2019-3574: In libsixel v1.8.2, there is a heap-based buffer over-read in the function load_jpeg() in the file loader.c, as demonstrated by img2sixel.
- CVE-2019-3573: In libsixel v1.8.2, there is an infinite loop in the function sixel_decode_raw_impl() in the file fromsixel.c, as demonstrated by sixel2png.
- CVE-2019-20024: A heap-based buffer overflow was discovered in image_buffer_resize in fromsixel.c in libsixel before 1.8.4.
- CVE-2019-20022: An invalid memory address dereference was discovered in load_pnm in frompnm.c in libsixel before 1.8.3.
- CVE-2018-19761: There is an illegal address access at fromsixel.c (function: sixel_decode_raw_impl) in libsixel 1.8.2 that will cause a denial of service.
- 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-2019-20056: stb_image.h (aka the stb image loader) 2.23, as used in libsixel and other products, has an assertion failure in stbi__shiftsigned.
- CVE-2018-14073: libsixel 1.8.1 has a memory leak in sixel_allocator_new in allocator.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.
- CVE-2018-19759: There is a heap-based buffer over-read at stb_image_write.h (function: stbi_write_png_to_mem) in libsixel 1.8.2 that will cause a denial of service.
- CVE-2018-19757: There is a NULL pointer dereference at function sixel_helper_set_additional_message (status.c) in libsixel 1.8.2 that will cause a denial of service.
- 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-2019-20023: A memory leak was discovered in image_buffer_resize in fromsixel.c in libsixel 1.8.4.
- CVE-2018-14072: libsixel 1.8.1 has a memory leak in sixel_decoder_decode in decoder.c, image_buffer_resize in fromsixel.c, and sixel_decode_raw in fromsixel.c.
- CVE-2019-19635: An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow in the function sixel_decode_raw_impl at fromsixel.c.
- CVE-2019-19637: An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_decode_raw_impl at fromsixel.c.
- CVE-2019-19636: An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_encode_body at tosixel.c.
- CVE-2019-19638: An issue was discovered in libsixel 1.8.2. There is a heap-based buffer overflow in the function load_pnm at frompnm.c, due to an integer overflow.
- CVE-2019-20205: libsixel 1.8.4 has an integer overflow in sixel_frame_resize in frame.c.
![[bug history graph]](https://qa.debian.org/data/bts/graphs/libs/libsixel.png){kind=link}