CVE-2020-19668 – Unverified indexs into the array lead to out of bound access in the gif_o

Unverified indexs into the array lead to out of bound access in the gif_out_code function in fromgif.c in libsixel 1.8.6.

 

Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-19668

Reference (s):

• https://github.com/saitoha/libsixel/issues/136