CVE-2020-21050

CVE-2020-21050 affects libsixel prior to v1.8.3, due to a stack buffer overflow in gif_process_raster at fromgif.c. The connected sources confirm the flaw and indicate fixes in later releases (e.g., v1.8.3+; upstream changelog mentions v1.8.5). Remediation is to upgradelibsixel to a version conta...