{"id":"CVE-2020-18775","details":"In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_b_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.","modified":"2026-07-08T19:01:40.482737Z","published":"2021-08-23T22:15:28.107Z","references":[{"type":"REPORT","url":"https://bugzilla.libav.org/show_bug.cgi?id=1152"},{"type":"ARTICLE","url":"https://cwe.mitre.org/data/definitions/126.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libav/libav","events":[{"introduced":"df744e3cf66548c9167ea857104a29d2ea92819e"},{"last_affected":"df744e3cf66548c9167ea857104a29d2ea92819e"}],"database_specific":{"cpe":"cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*","extracted_events":[{"introduced":"12.3"},{"last_affected":"12.3"}],"source":"CPE_STRING"}}],"versions":["12.3","v12.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-18775.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:N/I:N/A:H"}]}