{"id":"CVE-2021-21859","details":"An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The stri_box_read function is used when processing atoms using the 'stri' FOURCC code. An attacker can convince a user to open a video to trigger this vulnerability.","modified":"2026-08-10T03:46:51.423118431Z","published":"2021-08-16T20:15:48.500Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"11.0"},{"last_affected":"11.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"}]},"references":[{"type":"ADVISORY","url":"https://www.debian.org/security/2021/dsa-4966"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2021-1298"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gpac/gpac","events":[{"introduced":"d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"},{"last_affected":"d8538e8ae946b32d99c6b2c57cbb327146e9cd9d"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.1"},{"last_affected":"1.0.1"}]}}],"versions":["1.0.1","v1.0.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21859.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}