{"id":"OSV-2021-510","aliases":[],"status":"published","title":"Heap-use-after-free in grk_object_unref","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31874\n\n```\nCrash type: Heap-use-after-free READ 8\nCrash state:\ngrk_object_unref\ngrk::GrkObjectImpl\u003cgrk::GrkImage\u003e::release\ngrk::GrkObject::unref\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-03-11T00:00:21.858475Z","modified":"2026-10-19T14:26:21Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"grok","ranges":[{"type":"GIT","events":[{"introduced":"2cd6d952e040bb439ec53c53c0933d66908b6a91"}]}],"versions":["v8.0.0","v8.0.1","v8.0.2","v8.0.3","v9.0.0","v9.1.0","v9.2.0","v9.3.0","v9.4.0","v9.5.0","v9.5.0.debian","v9.6.0","v9.7.0","v9.7.1","v9.7.2","v9.7.3","v9.7.4","v9.7.4.debian","v9.7.5","v9.7.5.debian","v9.7.6","v9.7.7","v9.7.8","v10.0.0","v10.0.0.debian","v10.0.1","v10.0.2","v10.0.3","v10.0.4","v10.0.5","v10.0.5.debian","v10.0.6","v10.0.7","v10.0.8"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31874","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-510","title":"Heap-use-after-free in grk_object_unref","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31874\n\n```\nCrash type: Heap-use-after-free READ 8\nCrash state:\ngrk_object_unref\ngrk::GrkObjectImpl\u003cgrk::GrkImage\u003e::release\ngrk::GrkObject::unref\n```\n","status":"published","published":"2021-03-11T00:00:21.858475Z","modified":"2026-10-19T14:26:21.158945Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}