{"id":"OSV-2021-213","aliases":[],"status":"published","title":"Heap-use-after-free in ZSTD_freeDDict","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29705\n\n```\nCrash type: Heap-use-after-free READ {*}\nCrash state:\nZSTD_freeDDict\nblosc2_free_ctx\nblosc2_schunk_free\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-01-20T00:01:17.956363Z","modified":"2022-04-13T03:04:40Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"c-blosc2","ranges":[{"type":"GIT","events":[{"introduced":"250ca709b73000fe9c96fcc26109f233103b1636"},{"fixed":"c473b21cff5e1a459b4467f18bf7414114f848fd"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29705","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-213","title":"Heap-use-after-free in ZSTD_freeDDict","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29705\n\n```\nCrash type: Heap-use-after-free READ {*}\nCrash state:\nZSTD_freeDDict\nblosc2_free_ctx\nblosc2_schunk_free\n```\n","status":"published","published":"2021-01-20T00:01:17.956363Z","modified":"2022-04-13T03:04:40.462587Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}