{"id":"OSV-2023-176","aliases":[],"status":"published","title":"Heap-use-after-free in mrb_gc_mark","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56991\n\n```\nCrash type: Heap-use-after-free READ 4\nCrash state:\nmrb_gc_mark\nmrb_gc_mark_iv\ngc_mark_children\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-03-14T13:01:00.857694Z","modified":"2023-03-14T13:01:00Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"mruby","ranges":[{"type":"GIT","events":[{"introduced":"0e51da81bb7981a5005ca22c95384056bcb87671"},{"fixed":"8d1192f8a28034b1931a41e8c55cd86715101d0c"}]}]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56991","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2023-176","title":"Heap-use-after-free in mrb_gc_mark","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=56991\n\n```\nCrash type: Heap-use-after-free READ 4\nCrash state:\nmrb_gc_mark\nmrb_gc_mark_iv\ngc_mark_children\n```\n","status":"published","published":"2023-03-14T13:01:00.857694Z","modified":"2023-03-14T13:01:00.857973Z","updated_at":"2026-11-02T15:52:49.747775Z"}]}}