{"id":"OSV-2021-396","aliases":[],"status":"published","title":"Heap-buffer-overflow in OT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30908\n\n```\nCrash type: Heap-buffer-overflow READ 2\nCrash state:\nOT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co\nOT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co\nbool OT::AnchorMatrix::serialize\u003chb_filter_iter_t\u003chb_range_iter_t\u003cunsigned int, \n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-02-14T00:01:08.088962Z","modified":"2022-04-13T03:04:32Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"harfbuzz","ranges":[{"type":"GIT","events":[{"introduced":"c7d232ce4e8eccdeaf8fc4bb4b73818b581d3fb9"},{"fixed":"5ca353a2d026f655af61ae159adcaeace1fdb09c"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30908","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-396","title":"Heap-buffer-overflow in OT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30908\n\n```\nCrash type: Heap-buffer-overflow READ 2\nCrash state:\nOT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co\nOT::OffsetTo\u003cOT::Anchor, OT::IntType\u003cunsigned short, 2u\u003e, true\u003e* hb_serialize_co\nbool OT::AnchorMatrix::serialize\u003chb_filter_iter_t\u003chb_range_iter_t\u003cunsigned int, \n```\n","status":"published","published":"2021-02-14T00:01:08.088962Z","modified":"2022-04-13T03:04:32.951934Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}