{
    "CVE_data_meta": {
        "ASSIGNER": "sirt@juniper.net",
        "DATE_PUBLIC": "2023-01-11T17:00:00.000Z",
        "ID": "CVE-2023-22391",
        "STATE": "PUBLIC",
        "TITLE": "Junos OS: ACX2K Series: Receipt of a high rate of specific traffic will lead to a Denial of Service (DoS)"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Junos OS",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": "<",
                                            "version_value": "19.4R3-S9"
                                        },
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": ">=",
                                            "version_name": "20.2",
                                            "version_value": "20.2R1"
                                        },
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": "<",
                                            "version_name": "20.3",
                                            "version_value": "20.3R3-S6"
                                        },
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": "<",
                                            "version_name": "20.4",
                                            "version_value": "20.4R3-S4"
                                        },
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": ">=",
                                            "version_name": "21.1",
                                            "version_value": "21.1R1"
                                        },
                                        {
                                            "platform": "ACX2K Series",
                                            "version_affected": "<",
                                            "version_name": "21.2",
                                            "version_value": "21.2R3-S3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Juniper Networks"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A vulnerability in class-of-service (CoS) queue management in Juniper Networks Junos OS on the ACX2K Series devices allows an unauthenticated network-based attacker to cause a Denial of Service (DoS). Specific packets are being incorrectly routed to a queue used for other high-priority traffic such as BGP, PIM, ICMP, ICMPV6 ND and ISAKMP. Due to this misclassification of traffic, receipt of a high rate of these specific packets will cause delays in the processing of other traffic, leading to a Denial of Service (DoS). Continued receipt of this amount of traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on ACX2K Series: All versions prior to 19.4R3-S9; All 20.2 versions; 20.3 versions prior to 20.3R3-S6 on ACX2K Series; 20.4 versions prior to 20.4R3-S4 on ACX2K Series; All 21.1 versions; 21.2 versions prior to 21.2R3-S3 on ACX2K Series. Note: This issues affects legacy ACX2K Series PPC-based devices. This platform reached Last Supported Version (LSV) as of the Junos OS 21.2 Release."
            }
        ]
    },
    "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": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/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-755 Improper Handling of Exceptional Conditions"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Denial of Service (DoS)"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://kb.juniper.net/JSA70187",
                "refsource": "CONFIRM",
                "url": "https://kb.juniper.net/JSA70187"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "The following software releases have been updated to resolve this specific issue: Junos OS 19.4R3-S9, 20.3R3-S6, 20.4R3-S4, and 21.2R3-S3.\n\nNote: Legacy ACX2000 Series PPC-based devices have reached Last Supported Version (LSV) as of Junos OS 21.2.\n"
        }
    ],
    "source": {
        "advisory": "JSA70187",
        "defect": [
            "1637615"
        ],
        "discovery": "USER"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "There are no known workarounds for this issue."
        }
    ]
}