{"id":"OSV-2021-1695","aliases":[],"status":"published","title":"Heap-buffer-overflow in flexbuffers::Verifier::VerifyRef","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42373\n\n```\nCrash type: Heap-buffer-overflow READ 4\nCrash state:\nflexbuffers::Verifier::VerifyRef\nflexbuffers::Verifier::VerifyVector\nflexbuffers::Verifier::VerifyRef\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-12-15T00:00:06.478363Z","modified":"2022-04-13T03:04:42Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"flatbuffers","ranges":[{"type":"GIT","events":[{"introduced":"4264daadd2487cd3e63cf83f5dca3f0ccc53af64"},{"fixed":"5b0d4911278eec507fe5e621bd81fd7db42aa4db"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42373","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-1695","title":"Heap-buffer-overflow in flexbuffers::Verifier::VerifyRef","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=42373\n\n```\nCrash type: Heap-buffer-overflow READ 4\nCrash state:\nflexbuffers::Verifier::VerifyRef\nflexbuffers::Verifier::VerifyVector\nflexbuffers::Verifier::VerifyRef\n```\n","status":"published","published":"2021-12-15T00:00:06.478363Z","modified":"2022-04-13T03:04:42.04071Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}