{"id":"OSV-2021-495","aliases":[],"status":"published","title":"Heap-double-free in bit_chain_free","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724\n\n```\nCrash type: Heap-double-free\nCrash state:\nbit_chain_free\ndwg_encode_MTEXT\ndwg_encode_add_object\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-03-06T00:00:08.738235Z","modified":"2022-04-13T03:04:41Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"libredwg","ranges":[{"type":"GIT","events":[{"introduced":"749923e4dfaf9b32e13282325decd78595a60c95"},{"fixed":"9b6e0ff9ef02818df034fc42c3bd149a5ff89342"}]}],"versions":["0.12.3.4163","0.12.3.4165","0.12.3.4167","0.12.3.4173","0.12.3.4176","0.12.3.4178","0.12.3.4180","0.12.3.4185","0.12.3.4189","0.12.3.4191"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2021-495","title":"Heap-double-free in bit_chain_free","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724\n\n```\nCrash type: Heap-double-free\nCrash state:\nbit_chain_free\ndwg_encode_MTEXT\ndwg_encode_add_object\n```\n","status":"published","published":"2021-03-06T00:00:08.738235Z","modified":"2022-04-13T03:04:41.065051Z","updated_at":"2026-11-02T15:52:49.04248Z"}]}}