{"id":"OSV-2020-1855","aliases":[],"status":"published","title":"Heap-buffer-overflow in WelsDec::UpdateP16x16MotionInfo","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25961\n\n```\nCrash type: Heap-buffer-overflow WRITE 4\nCrash state:\nWelsDec::UpdateP16x16MotionInfo\nWelsDec::ParseInterPMotionInfoCabac\nWelsDec::WelsDecodeMbCabacPSliceBaseMode0\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-09-27T00:00:13.048083Z","modified":"2022-04-13T03:04:37Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"openh264","ranges":[{"type":"GIT","events":[{"introduced":"66ef706acd55b0b8daec32ca299d2586a1f473c9"},{"fixed":"f1bb6d3acb057785b4d89e8228e23cc4fc9caa12"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25961","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2020-1855","title":"Heap-buffer-overflow in WelsDec::UpdateP16x16MotionInfo","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25961\n\n```\nCrash type: Heap-buffer-overflow WRITE 4\nCrash state:\nWelsDec::UpdateP16x16MotionInfo\nWelsDec::ParseInterPMotionInfoCabac\nWelsDec::WelsDecodeMbCabacPSliceBaseMode0\n```\n","status":"published","published":"2020-09-27T00:00:13.048083Z","modified":"2022-04-13T03:04:37.673448Z","updated_at":"2026-11-02T15:52:48.531106Z"}]}}