{
    "CVE_data_meta": {
        "ASSIGNER": "sirt@juniper.net",
        "DATE_PUBLIC": "2022-07-13T16:00:00.000Z",
        "ID": "CVE-2022-22210",
        "STATE": "PUBLIC",
        "TITLE": "Junos OS: QFX5000 Series and MX Series: An l2alm crash leading to an FPC crash can be observed in VxLAN scenario"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Junos OS",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "QFX5000 Series, MX Series",
                                            "version_affected": "<",
                                            "version_name": "20.3",
                                            "version_value": "20.3R3-S3"
                                        },
                                        {
                                            "platform": "QFX5000 Series, MX Series",
                                            "version_affected": "<",
                                            "version_name": "20.4",
                                            "version_value": "20.4R3-S2"
                                        },
                                        {
                                            "platform": "QFX5000 Series, MX Series",
                                            "version_affected": "<",
                                            "version_name": "21.2",
                                            "version_value": "21.2R2-S1"
                                        },
                                        {
                                            "version_affected": "!<",
                                            "version_value": "20.3R1"
                                        },
                                        {
                                            "version_affected": "!>=",
                                            "version_name": "21.1",
                                            "version_value": "21.1R1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Juniper Networks"
                }
            ]
        }
    },
    "configuration": [
        {
            "lang": "eng",
            "value": "For a device to be affected a VxLAN configuration like in the following examples will need to be present:\n\n  [ vlans vlan-name vxlan \u2026 ]\nor\n  [ bridge-domains bridge-domain-name vxlan\u2026 ]\n"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions."
            }
        ]
    },
    "exploit": [
        {
            "lang": "eng",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
    ],
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-476 NULL Pointer Dereference"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Denial of Service (DoS)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://kb.juniper.net/JSA69714",
                "refsource": "CONFIRM",
                "url": "https://kb.juniper.net/JSA69714"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "The following software releases have been updated to resolve this specific issue: 20.3R3-S3, 20.4R3-S2, 21.2R2-S1, and all subsequent releases.\n"
        }
    ],
    "source": {
        "advisory": "JSA69714",
        "defect": [
            "1636853"
        ],
        "discovery": "USER"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "There are no viable workarounds for this issue."
        }
    ]
}