Libsixel 1.8.3 contains a heap-based buffer overflow in the sixelencodehighcolor function in tosixel.c.
{ "versions": [ { "introduced": "0" }, { "last_affected": "1.8.3" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21548.json"