cvelist/2021/3xxx/CVE-2021-3786.json

{
    "CVE_data_meta": {
        "ASSIGNER": "psirt@lenovo.com",
        "ID": "CVE-2021-3786",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Notebook and ThinkPad BIOS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "various"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Lenovo"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Lenovo thanks Itai Liba and Assaf Carlsbad from SentinelOne for reporting these issues."
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A potential vulnerability in the SMI callback function used in CSME configuration of some Lenovo Notebook and ThinkPad systems could be used to leak out data out of the SMRAM range."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20 Improper Input Validation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://support.lenovo.com/us/en/product_security/LEN-67440",
                "name": "https://support.lenovo.com/us/en/product_security/LEN-67440"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "Update system firmware to the version (or newer) indicated for your model in the Product Impact section of LEN-67440."
        }
    ],
    "source": {
        "advisory": "LEN-67440",
        "discovery": "UNKNOWN"
    }
}