{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-40439",
        "STATE": "PUBLIC",
        "TITLE": "Billion Laughs"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache OpenOffice",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<=",
                                            "version_name": "Apache OpenOffice",
                                            "version_value": "4.1.10"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_name": "OpenOffice.org",
                                            "version_value": "3.4"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Apache OpenOffice has a dependency on expat software. Versions prior to 2.1.0 were subject to CVE-2013-0340 a \"Billion Laughs\" entity expansion denial of service attack and exploit via crafted XML files. ODF files consist of a set of XML files. All versions of Apache OpenOffice up to 4.1.10 are subject to this issue. expat in version 4.1.11 is patched."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": [
        {
            "other": "medium"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-611 Improper Restriction of XML External Entity Reference"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E",
                "name": "https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702%40%3Cusers.openoffice.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[announce] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs",
                "url": "https://lists.apache.org/thread.html/r41eca5f4f09e74436cbb05dec450fc2bef37b5d3e966aa7cc5fada6d@%3Cannounce.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[openoffice-users] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs",
                "url": "https://lists.apache.org/thread.html/rfb2c193360436e230b85547e85a41bea0916916f96c501f5b6fc4702@%3Cusers.openoffice.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20211007 CVE-2021-40439: Apache OpenOffice: Billion Laughs",
                "url": "http://www.openwall.com/lists/oss-security/2021/10/07/4"
            }
        ]
    },
    "source": {
        "discovery": "UNKNOWN"
    }
}