{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2021-0306",
        "ASSIGNER": "security@android.com",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Android",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Android-11"
                                        },
                                        {
                                            "version_value": "Android-8.0"
                                        },
                                        {
                                            "version_value": "Android-8.1"
                                        },
                                        {
                                            "version_value": "Android-9"
                                        },
                                        {
                                            "version_value": "Android-10"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Elevation of privilege"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "CONFIRM",
                "name": "https://source.android.com/security/bulletin/2021-01-01",
                "url": "https://source.android.com/security/bulletin/2021-01-01"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In addAllPermissions of PermissionManagerService.java, there is a possible permissions bypass when upgrading major Android versions which allows an app to gain the android.permission.ACTIVITY_RECOGNITION permission without user confirmation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-11, Android-8.0, Android-8.1, Android-9, Android-10; Android ID: A-154505240."
            }
        ]
    }
}