{"schema_version":"1.7.3","id":"OSV-2020-1851","published":"2020-09-26T00:00:34.368870Z","modified":"2022-04-13T03:04:41.476667Z","summary":"Stack-buffer-underflow in fmt::v6::basic_format_args<fmt::v6::basic_format_context<std::__1::back_insert_i","details":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21794\n\n```\nCrash type: Stack-buffer-underflow READ 16\nCrash state:\nfmt::v6::basic_format_args<fmt::v6::basic_format_context<std::__1::back_insert_i\nfmt::v6::basic_format_args<fmt::v6::basic_format_context<std::__1::back_insert_i\nfmt::v6::basic_format_context<std::__1::back_insert_iterator<fmt::v6::internal::\n```\n","affected":[{"package":{"name":"libfmt","ecosystem":"OSS-Fuzz","purl":"pkg:generic/libfmt"},"ranges":[{"type":"GIT","repo":"https://github.com/fmtlib/fmt.git","events":[{"introduced":"8a4630686e2dd24900897298c4ae1362de749ed8"},{"fixed":"3f79357ef0291f2c053d5a69842a72a4ec47124e"}]}],"database_specific":{"source":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libfmt/OSV-2020-1851.yaml"}}],"references":[{"type":"REPORT","url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21794"}]}