{"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":"2026-03-14T10:14:29.906346Z","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":"0"},{"last_affected":"df744e3cf66548c9167ea857104a29d2ea92819e"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"12.3"}]}}],"versions":["dev14.2","v0.7","v0.7b1","v0.7b2","v0.7rc1","v0.8","v0.8b1","v0.8b2","v10_alpha1","v10_alpha2","v10_beta1","v11_alpha1","v11_alpha2","v11_beta1","v11_dev0","v12","v12.1","v12.3","v12_alpha1","v12_alpha2","v12_beta1","v12_dev0","v9","v9_beta1","v9_beta2","v9_beta3"],"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"}]}