{
    "CVE_data_meta": {
        "ASSIGNER": "sirt@juniper.net",
        "DATE_PUBLIC": "2023-04-12T16:00:00.000Z",
        "ID": "CVE-2023-28974",
        "STATE": "PUBLIC",
        "TITLE": "Junos OS: MX Series: In a BBE scenario upon receipt of specific malformed packets from subscribers the process bbe-smgd will crash"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Junos OS",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_value": "19.4R3-S11"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "20.2",
                                            "version_value": "20.2R3-S7"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "20.3",
                                            "version_value": "20.3R3-S6"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "20.4",
                                            "version_value": "20.4R3-S6"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "21.1",
                                            "version_value": "21.1R3-S4"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "21.2",
                                            "version_value": "21.2R3-S4"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "21.3",
                                            "version_value": "21.3R3-S3"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "21.4",
                                            "version_value": "21.4R3-S2"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "22.1",
                                            "version_value": "22.1R2-S2, 22.1R3"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "22.2",
                                            "version_value": "22.2R2"
                                        },
                                        {
                                            "platform": "MX Series",
                                            "version_affected": "<",
                                            "version_name": "22.3",
                                            "version_value": "22.3R1-S2, 22.3R2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Juniper Networks"
                }
            ]
        }
    },
    "configuration": [
        {
            "lang": "eng",
            "value": "To be exposed to this vulnerability subscriber management needs to be enabled via:\n\n  [system services subscriber-management enable]"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the bbe-smgd of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In a Broadband Edge / Subscriber Management scenario on MX Series when a specifically malformed ICMP packet addressed to the device is received from a subscriber the bbe-smgd will crash, affecting the subscriber sessions that are connecting, updating, or terminating. Continued receipt of such packets will lead to a sustained DoS condition. When this issue happens the below log can be seen if the traceoptions for the processes smg-service are enabled: BBE_TRACE(TRACE_LEVEL_INFO, \"%s: Dropped unsupported ICMP PKT ... This issue affects Juniper Networks Junos OS on MX Series: All versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S7; 20.3 versions prior to 20.3R3-S6; 20.4 versions prior to 20.4R3-S6; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S2; 22.1 versions prior to 22.1R2-S2, 22.1R3; 22.2 versions prior to 22.2R2; 22.3 versions prior to 22.3R1-S2, 22.3R2."
            }
        ]
    },
    "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": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-754 Improper Check for Unusual or Exceptional Conditions"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Denial of Service (DoS)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://supportportal.juniper.net/JSA70599",
                "refsource": "CONFIRM",
                "url": "https://supportportal.juniper.net/JSA70599"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "The following software releases have been updated to resolve this specific issue: 19.4R3-S11, 20.2R3-S7, 20.3R3-S6, 20.4R3-S6, 21.1R3-S4, 21.2R3-S4, 21.3R3-S3, 21.4R3-S2, 22.1R2-S2, 22.1R3, 22.2R2, 22.3R1-S2, 22.3R2, 22.4R1, and all subsequent releases.\n"
        }
    ],
    "source": {
        "advisory": "JSA70599",
        "defect": [
            "1681389"
        ],
        "discovery": "USER"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "There are no known workarounds for this issue."
        }
    ]
}