{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2022-3675",
        "ASSIGNER": "patrick@puiterwijk.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Fedora CoreOS supports setting a GRUB bootloader password using a Butane config. When this feature is enabled, GRUB requires a password to access the GRUB command-line, modify kernel command-line arguments, or boot non-default OSTree deployments. Recent Fedora CoreOS releases have a misconfiguration which allows booting non-default OSTree deployments without entering a password. This allows someone with access to the GRUB menu to boot into an older version of Fedora CoreOS, reverting any security fixes that have recently been applied to the machine. A password is still required to modify kernel command-line arguments and to access the GRUB command line."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20 Improper Input Validation",
                        "cweId": "CWE-20"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Fedora Project",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "CoreOS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "testing 36.20220906.2.0 and later",
                                            "version_affected": "="
                                        },
                                        {
                                            "version_value": "next 36.20220906.1.0 and later",
                                            "version_affected": "="
                                        },
                                        {
                                            "version_value": "stable 36.20220820.3.0 and later",
                                            "version_affected": "="
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/coreos/fedora-coreos-tracker/issues/1333",
                "refsource": "MISC",
                "name": "https://github.com/coreos/fedora-coreos-tracker/issues/1333"
            },
            {
                "url": "https://lists.fedoraproject.org/archives/list/coreos-status@lists.fedoraproject.org/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/",
                "refsource": "MISC",
                "name": "https://lists.fedoraproject.org/archives/list/coreos-status@lists.fedoraproject.org/thread/NHUCNH5Y4UH5DPUCXISYXXVA563TLFEJ/"
            },
            {
                "url": "https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/",
                "refsource": "MISC",
                "name": "https://docs.fedoraproject.org/en-US/fedora-coreos/grub-password/"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.1.0-dev"
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "PHYSICAL",
                "availabilityImpact": "NONE",
                "baseScore": 2.6,
                "baseSeverity": "LOW",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
                "version": "3.1"
            }
        ]
    }
}