{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-24240",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/akimd/bison/commit/be95a4fe2951374676efc9454ffee8638faaf68d",
                "refsource": "MISC",
                "name": "https://github.com/akimd/bison/commit/be95a4fe2951374676efc9454ffee8638faaf68d"
            },
            {
                "url": "https://lists.gnu.org/r/bug-bison/2020-07/msg00051.html",
                "refsource": "MISC",
                "name": "https://lists.gnu.org/r/bug-bison/2020-07/msg00051.html"
            },
            {
                "refsource": "MISC",
                "name": "https://github.com/akimd/bison/compare/v3.7...v3.7.1",
                "url": "https://github.com/akimd/bison/compare/v3.7...v3.7.1"
            }
        ]
    }
}