{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2018-3968",
        "ASSIGNER": "talos-cna@cisco.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Das U-Boot",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Das U-Boot 2013.07-rc1 to 2014.07-rc2 OCTEON-SDK 3.1.2 to 5.1 CUJO Smart Firewall - Firmware version 7003"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": " Improper Verification of Cryptographic Signature"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633",
                "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2018-0633"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An exploitable vulnerability exists in the verified boot protection of the Das U-Boot from version 2013.07-rc1 to 2014.07-rc2. The affected versions lack proper FIT signature enforcement, which allows an attacker to bypass U-Boot's verified boot and execute an unsigned kernel, embedded in a legacy image format. To trigger this vulnerability, a local attacker needs to be able to supply the image to boot."
            }
        ]
    },
    "impact": {
        "cvss": {
            "baseScore": 8.2,
            "baseSeverity": "High",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
        }
    }
}