{"id":"OSV-2020-2107","aliases":[],"status":"published","title":"Heap-buffer-overflow in WelsDec::ParseIntra4x4Mode","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26723\n\n```\nCrash type: Heap-buffer-overflow WRITE 1\nCrash state:\nWelsDec::ParseIntra4x4Mode\nWelsDec::WelsActualDecodeMbCavlcISlice\nWelsDec::WelsDecodeMbCavlcISlice\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-10-30T00:00:46.801962Z","modified":"2022-04-13T03:04:37Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"openh264","ranges":[{"type":"GIT","events":[{"introduced":"66ef706acd55b0b8daec32ca299d2586a1f473c9"},{"fixed":"b52786888ddce9d6bc06b7825ba9bffc65924e0c"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26723","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2020-2107","title":"Heap-buffer-overflow in WelsDec::ParseIntra4x4Mode","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26723\n\n```\nCrash type: Heap-buffer-overflow WRITE 1\nCrash state:\nWelsDec::ParseIntra4x4Mode\nWelsDec::WelsActualDecodeMbCavlcISlice\nWelsDec::WelsDecodeMbCavlcISlice\n```\n","status":"published","published":"2020-10-30T00:00:46.801962Z","modified":"2022-04-13T03:04:37.457147Z","updated_at":"2026-11-02T15:52:48.531106Z"}]}}