{"id":"OSV-2021-495","summary":"Heap-double-free in bit_chain_free","details":"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","modified":"2022-04-13T03:04:41.065051Z","published":"2021-03-06T00:00:08.738235Z","references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31724"}],"affected":[{"package":{"name":"libredwg","ecosystem":"OSS-Fuzz","purl":"pkg:generic/libredwg"},"ranges":[{"type":"GIT","repo":"https://github.com/LibreDWG/libredwg","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"],"ecosystem_specific":{"severity":"HIGH"},"database_specific":{"source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libredwg/OSV-2021-495.yaml"}}],"schema_version":"1.7.3"}