{
    "CVE_data_meta": {
        "AKA": "KNOB",
        "ASSIGNER": "cert@cert.org",
        "DATE_PUBLIC": "2019-08-14",
        "ID": "CVE-2019-9506",
        "STATE": "PUBLIC",
        "TITLE": "Blutooth BR/EDR specification does not specify sufficient encryption key length and allows an attacker to influence key length negotiation"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "BR/EDR ",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "N/A",
                                            "version_affected": "<=",
                                            "version_name": "5.1",
                                            "version_value": "5.1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Bluetooth"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Daniele Antonioli\u201a Nils Ole Tippenhauer, Kasper Rasmussen"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and does not prevent an attacker from influencing the key length negotiation. This allows practical brute-force attacks (aka \"KNOB\") that can decrypt traffic and inject arbitrary ciphertext without the victim noticing."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.7"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-310 Cryptographic Issues"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "VU#918987",
                "refsource": "CERT-VN",
                "url": "https://www.kb.cert.org/vuls/id/918987/"
            },
            {
                "name": "http://www.cs.ox.ac.uk/publications/publication12404-abstract.html",
                "refsource": "MISC",
                "url": "http://www.cs.ox.ac.uk/publications/publication12404-abstract.html"
            },
            {
                "name": "https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli",
                "refsource": "MISC",
                "url": "https://www.usenix.org/conference/usenixsecurity19/presentation/antonioli"
            },
            {
                "name": "https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/",
                "refsource": "CONFIRM",
                "url": "https://www.bluetooth.com/security/statement-key-negotiation-of-bluetooth/"
            },
            {
                "refsource": "FULLDISC",
                "name": "20190816 APPLE-SA-2019-8-13-3 Additional information for APPLE-SA-2019-7-22-4 watchOS 5.3",
                "url": "http://seclists.org/fulldisclosure/2019/Aug/14"
            },
            {
                "refsource": "FULLDISC",
                "name": "20190816 APPLE-SA-2019-8-13-1 Additional information for APPLE-SA-2019-7-22-2 macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra",
                "url": "http://seclists.org/fulldisclosure/2019/Aug/11"
            },
            {
                "refsource": "FULLDISC",
                "name": "20190816 APPLE-SA-2019-8-13-2 Additional information for APPLE-SA-2019-7-22-1 iOS 12.4",
                "url": "http://seclists.org/fulldisclosure/2019/Aug/13"
            },
            {
                "refsource": "FULLDISC",
                "name": "20190816 APPLE-SA-2019-8-13-4 Additional information for APPLE-SA-2019-7-22-5 tvOS 12.4",
                "url": "http://seclists.org/fulldisclosure/2019/Aug/15"
            },
            {
                "refsource": "CONFIRM",
                "name": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en",
                "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190828-01-knob-en"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4115-1",
                "url": "https://usn.ubuntu.com/4115-1/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4118-1",
                "url": "https://usn.ubuntu.com/4118-1/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190914 [SECURITY] [DLA 1919-1] linux-4.9 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190915 [SECURITY] [DLA 1919-2] linux-4.9 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4147-1",
                "url": "https://usn.ubuntu.com/4147-1/"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:2975",
                "url": "https://access.redhat.com/errata/RHSA-2019:2975"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:2307",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00037.html"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2019:2308",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00036.html"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3076",
                "url": "https://access.redhat.com/errata/RHSA-2019:3076"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3055",
                "url": "https://access.redhat.com/errata/RHSA-2019:3055"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3089",
                "url": "https://access.redhat.com/errata/RHSA-2019:3089"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3187",
                "url": "https://access.redhat.com/errata/RHSA-2019:3187"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3165",
                "url": "https://access.redhat.com/errata/RHSA-2019:3165"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3217",
                "url": "https://access.redhat.com/errata/RHSA-2019:3217"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3220",
                "url": "https://access.redhat.com/errata/RHSA-2019:3220"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3231",
                "url": "https://access.redhat.com/errata/RHSA-2019:3231"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3218",
                "url": "https://access.redhat.com/errata/RHSA-2019:3218"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3309",
                "url": "https://access.redhat.com/errata/RHSA-2019:3309"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2019:3517",
                "url": "https://access.redhat.com/errata/RHSA-2019:3517"
            },
            {
                "refsource": "REDHAT",
                "name": "RHSA-2020:0204",
                "url": "https://access.redhat.com/errata/RHSA-2020:0204"
            }
        ]
    },
    "source": {
        "advisory": "VU#918987",
        "defect": [
            "VU#918987"
        ],
        "discovery": "EXTERNAL"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "Bluetooth SIG Expedited Errata Correction 11838"
        }
    ]
}