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cvelist/2021/31xxx/CVE-2021-31370.json

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{
"CVE_data_meta": {
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"ASSIGNER": "sirt@juniper.net",
"DATE_PUBLIC": "2021-10-13T16:00:00.000Z",
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"ID": "CVE-2021-31370",
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"STATE": "PUBLIC",
"TITLE": "Junos OS: QFX5000 Series and EX4600 Series: Control traffic might be dropped if a high rate of specific multicast traffic is received"
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},
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"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
"version_data": [
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_value": "17.3R3-S12"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "17.4",
"version_value": "17.4R3-S5"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "18.3",
"version_value": "18.3R3-S5"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "18.4",
"version_value": "18.4R3-S9"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "19.1",
"version_value": "19.1R3-S6"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "19.2",
"version_value": "19.2R1-S7, 19.2R3-S3"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "19.3",
"version_value": "19.3R2-S6, 19.3R3-S3"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "19.4",
"version_value": "19.4R1-S4, 19.4R3-S3"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "20.1",
"version_value": "20.1R2-S2, 20.1R3-S1"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "20.2",
"version_value": "20.2R3-S2"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "20.3",
"version_value": "20.3R3"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "20.4",
"version_value": "20.4R2-S2, 20.4R3"
},
{
"platform": "QFX5000 Series, EX4600 Series",
"version_affected": "<",
"version_name": "21.1",
"version_value": "21.1R1-S1, 21.1R2"
}
]
}
}
]
},
"vendor_name": "Juniper Networks"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
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"description": {
"description_data": [
{
"lang": "eng",
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"value": "An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols (including but not limited to routing-protocols) and lead to a Denial of Service (DoS). Continued receipt of this specific multicast traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 and EX4600 Series: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2."
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}
]
},
"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-184: Incomplete List of Disallowed Inputs"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "Denial of Service (DoS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://kb.juniper.net/JSA11232",
"refsource": "CONFIRM",
"url": "https://kb.juniper.net/JSA11232"
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}
]
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},
"solution": [
{
"lang": "eng",
"value": "The following software releases have been updated to resolve this specific issue: 17.3R3-S12, 17.4R3-S5, 18.3R3-S5, 18.4R3-S9, 19.1R3-S6, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R1-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3-S1, 20.2R3-S2, 20.3R3, 20.4R2-S2, 20.4R3, 21.1R1-S1, 21.1R2, 21.2R1, and all subsequent releases.\n"
}
],
"source": {
"advisory": "JSA11232",
"defect": [
"1576488"
],
"discovery": "USER"
},
"work_around": [
{
"lang": "eng",
"value": "Please ensure you have a loopback filter applied to drop unneeded multicast traffic.\n\nYou can find further information on such filters in https://www.rfc-editor.org/rfc/rfc6192 and in \"Hardening Junos Devices, 2nd Edition\" at https://www.juniper.net/documentation/jnbooks/us/en/day-one-books"
}
]
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}
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