{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-4234",
        "ASSIGNER": "security@openvpn.net",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "OpenVPN Access Server",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "2.10 and prior version"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-406: Insufficient Control of Network Message Volume"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0",
                "url": "https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack."
            }
        ]
    }
}