Saitoha Libsixel
48 CVEs affecting Saitoha Libsixel. Latest disclosed: 2026-05-14. Critical: 4, High: 21.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2019-19638 | Critical | 9.8 | 2019-12-08 | 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-2019-19637 | Critical | 9.8 | 2019-12-08 | 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 | Critical | 9.8 | 2019-12-08 | An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixel_encode_body at tosixel.c. |
CVE-2019-19635 | Critical | 9.8 | 2019-12-08 | 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-2022-27046 | High | 8.8 | 2022-04-08 | libsixel 1.8.6 suffers from a Heap Use After Free vulnerability in in libsixel/src/dither.c:388. |
CVE-2022-27044 | High | 8.8 | 2022-04-08 | libsixel 1.8.6 is affected by Buffer Overflow in libsixel/src/quant.c:876. |
CVE-2020-21548 | High | 8.8 | 2021-09-17 | Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c. |
CVE-2020-21547 | High | 8.8 | 2021-09-17 | Libsixel 1.8.2 contains a heap-based buffer overflow in the dither_func_fs function in tosixel.c. |
CVE-2019-20205 | High | 8.8 | 2020-01-02 | libsixel 1.8.4 has an integer overflow in sixel_frame_resize in frame.c. |
CVE-2019-20140 | High | 8.8 | 2019-12-30 | 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-2019-20094 | High | 8.8 | 2019-12-30 | 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-2019-19778 | High | 8.8 | 2019-12-13 | 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 | High | 8.8 | 2019-12-13 | 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-2026-33023 | High | 7.8 | 2026-04-14 | libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. In versions 1.8.7 and prior, when built with the --with-gdk-pixbuf2 option, a us… |
CVE-2019-3574 | High | 7.8 | 2019-01-02 | 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-2018-19762 | High | 7.8 | 2018-11-30 | There is a heap-based buffer overflow at fromsixel.c (function: image_buffer_resize) in libsixel 1.8.2 that will cause a denial of service or possibly unspecif… |
CVE-2020-36120 | High | 7.5 | 2021-04-14 | Buffer Overflow in the "sixel_encoder_encode_bytes" function of Libsixel v1.8.6 allows attackers to cause a Denial of Service (DoS). |
CVE-2018-14073 | High | 7.5 | 2018-07-15 | libsixel 1.8.1 has a memory leak in sixel_allocator_new in allocator.c. |
CVE-2018-14072 | High | 7.5 | 2018-07-15 | 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-2026-44636 | High | 7.4 | 2026-05-14 | libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, signed integer overflow in sixel_encode_highcolor's allocatio… |