{"id":"OSV-2021-526","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=32076\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":"2021-03-16T00:01:01.703386Z","modified":"2022-04-13T03:04:40Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"c-blosc2","ranges":[{"type":"GIT","events":[{"introduced":"861ba79f31393dec0a0782ca11cf32cebb6f6610"},{"fixed":"48123a7d2e7409ecd0e74f64a326fa7f2af0627d"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32076","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-526","title":"Heap-use-after-free in ZSTD_freeDDict","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32076\n\n```\nCrash type: Heap-use-after-free READ {*}\nCrash state:\nZSTD_freeDDict\nblosc2_free_ctx\nblosc2_schunk_free\n```\n","status":"published","published":"2021-03-16T00:01:01.703386Z","modified":"2022-04-13T03:04:40.184966Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}