{"id":"CVE-2019-19777","details":"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.","modified":"2026-07-08T05:53:25.495608684Z","published":"2019-12-13T02:15:10.893Z","database_specific":{"unresolved_ranges":[{"source":"CPE_STRING","vendor_product":"nothings:stb_image.h","cpes":["cpe:2.3:a:nothings:stb_image.h:2.23:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"2.23"},{"last_affected":"2.23"}]}]},"references":[{"type":"EVIDENCE","url":"https://github.com/saitoha/libsixel/issues/109"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/saitoha/libsixel","events":[{"introduced":"6219db6d8416fde3a3b1272e900a76ccdfadec01"},{"last_affected":"6219db6d8416fde3a3b1272e900a76ccdfadec01"}],"database_specific":{"cpe":"cpe:2.3:a:saitoha:libsixel:1.8.2:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.8.2"},{"last_affected":"1.8.2"}],"source":"CPE_STRING"}}],"versions":["1.8.2","v1.8.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19777.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}