cvelist/2022/22xxx/CVE-2022-22227.json

{
    "CVE_data_meta": {
        "ASSIGNER": "sirt@juniper.net",
        "DATE_PUBLIC": "2022-10-12T16:00:00.000Z",
        "ID": "CVE-2022-22227",
        "STATE": "PUBLIC",
        "TITLE": "Junos OS Evolved: ACX7000 Series: Specific IPv6 transit traffic gets exceptioned to the routing-engine which causes increased CPU utilization"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Junos OS Evolved",
                                "version": {
                                    "version_data": [
                                        {
                                            "platform": "ACX7100-48L, ACX7100-32C, ACX7509",
                                            "version_affected": "<",
                                            "version_name": "21.1-EVO",
                                            "version_value": "21.1R3-S2-EVO"
                                        },
                                        {
                                            "platform": "ACX7100-48L, ACX7100-32C, ACX7509",
                                            "version_affected": "<",
                                            "version_name": "21.2-EVO",
                                            "version_value": "21.2R3-S2-EVO"
                                        },
                                        {
                                            "platform": "ACX7100-48L, ACX7100-32C, ACX7509",
                                            "version_affected": "<",
                                            "version_name": "21.3-EVO",
                                            "version_value": "21.3R3-EVO"
                                        },
                                        {
                                            "platform": "ACX7100-48L, ACX7100-32C, ACX7509",
                                            "version_affected": "<",
                                            "version_name": "21.4-EVO",
                                            "version_value": "21.4R1-S1-EVO, 21.4R2-EVO"
                                        },
                                        {
                                            "platform": "ACX7100-48L, ACX7100-32C, ACX7509",
                                            "version_affected": "!<",
                                            "version_value": "21.1R1-EVO"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Juniper Networks"
                }
            ]
        }
    },
    "configuration": [
        {
            "lang": "eng",
            "value": "To be exposed to this vulnerability a device needs to be configured with a minimal IPv6 configuration like in the following example:\n\n  [ interfaces <interface> unit <unit number> family inet6 ]"
        }
    ],
    "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 Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On receipt of specific IPv6 transit traffic, Junos OS Evolved on ACX7100-48L, ACX7100-32C and ACX7509 sends this traffic to the Routing Engine (RE) instead of forwarding it, leading to increased CPU utilization of the RE and a partial DoS. This issue only affects systems configured with IPv6. This issue does not affect ACX7024 which is supported from 22.3R1-EVO onwards where the fix has already been incorporated as indicated in the solution section. This issue affects Juniper Networks Junos OS Evolved on ACX7100-48L, ACX7100-32C, ACX7509: 21.1-EVO versions prior to 21.1R3-S2-EVO; 21.2-EVO versions prior to 21.2R3-S2-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R1-S1-EVO, 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.1R1-EVO."
            }
        ]
    },
    "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": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "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://kb.juniper.net/JSA69878",
                "refsource": "CONFIRM",
                "url": "https://kb.juniper.net/JSA69878"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "The following software releases have been updated to resolve this specific issue: 21.1R3-S2-EVO, 21.2R3-S2-EVO, 21.3R3-EVO, 21.4R1-S1-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases.\n"
        }
    ],
    "source": {
        "advisory": "JSA69878",
        "defect": [
            "1641006"
        ],
        "discovery": "USER"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "There are no viable workarounds for this issue."
        }
    ]
}