{"id":"OSV-2023-51","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=55673\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":"2023-02-05T13:00:54.245269Z","modified":"2025-02-19T14:14:00Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"c-blosc2","ranges":[{"type":"GIT","events":[{"introduced":"abfebc4c4e0f747be1257a21332feac1477f2c2f"},{"fixed":"34db770e436aa4ceaa9b9110948f8dac1f1f443d"}]}],"versions":["v2.0.0","v2.0.0-rc2","v2.0.0.rc1","v2.0.1","v2.0.2","v2.0.3","v2.0.4","v2.1.0","v2.1.1","v2.10.0","v2.10.1","v2.10.2","v2.10.3","v2.10.4","v2.10.5","v2.11.0","v2.11.1","v2.11.2","v2.11.3","v2.12.0","v2.13.0","v2.13.1","v2.13.2","v2.14.0","v2.14.1","v2.14.2","v2.14.3","v2.14.4","v2.15.0","v2.15.1","v2.15.2","v2.16.0","v2.2.0","v2.3.0","v2.3.1","v2.4.0","v2.4.1","v2.4.2","v2.4.3","v2.5.0","v2.6.0","v2.6.1","v2.7.0","v2.7.1","v2.8.0","v2.9.0","v2.9.1","v2.9.2","v2.9.3"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55673","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2023-51","title":"Heap-use-after-free in ZSTD_freeDDict","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55673\n\n```\nCrash type: Heap-use-after-free READ {*}\nCrash state:\nZSTD_freeDDict\nblosc2_free_ctx\nblosc2_schunk_free\n```\n","status":"published","published":"2023-02-05T13:00:54.245269Z","modified":"2025-02-19T14:14:00.172684Z","updated_at":"2026-11-02T15:52:49.747775Z"}]}}