GSD-2022-22171
Vulnerability from gsd - Updated: 2023-12-13 01:19Details
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause the PFE to reset. This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect versions of Junos OS prior to 19.4R1.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2022-22171",
"description": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause the PFE to reset.\nThis issue affects:\nJuniper Networks Junos OS\n19.4 versions prior to 19.4R3-S7;\n20.1 versions prior to 20.1R3-S3;\n20.2 versions prior to 20.2R3-S3;\n20.3 versions prior to 20.3R3-S2;\n20.4 versions prior to 20.4R3-S1;\n21.1 versions prior to 21.1R3;\n21.2 versions prior to 21.2R2;\n21.3 versions prior to 21.3R1-S1, 21.3R2.\n\nThis issue does not affect versions of Junos OS prior to 19.4R1. ",
"id": "GSD-2022-22171"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2022-22171"
],
"details": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause the PFE to reset. This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect versions of Junos OS prior to 19.4R1.",
"id": "GSD-2022-22171",
"modified": "2023-12-13T01:19:29.396631Z",
"schema_version": "1.4.0"
}
},
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"DATE_PUBLIC": "2022-01-12T17:00:00.000Z",
"ID": "CVE-2022-22171",
"STATE": "PUBLIC",
"TITLE": "Junos OS: Specific packets over VXLAN cause FPC reset"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
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{
"version_affected": "\u003c",
"version_name": "19.4",
"version_value": "19.4R3-S7"
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{
"version_affected": "\u003c",
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"version_value": "20.1R3-S3"
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{
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"version_value": "19.4R1"
}
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}
}
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},
"vendor_name": "Juniper Networks"
}
]
}
},
"configuration": [
{
"lang": "eng",
"value": "For this issue to be exploitable a configuration like the following will have to exist:\n\n [ routing-instances \u003cRI-name\u003e instance-type virtual-switch ]\n [ routing-instances \u003cRI-name\u003e bridge-domains \u003cBD-name\u003e vlan-id \u003cvlan#n\u003e ]\n [ routing-instances \u003cRI-name\u003e bridge-domains \u003cBD-name\u003e vxlan ... ]\n [ interfaces ae0 unit \u003cunit#\u003e vlan-id \u003cvlan#n\u003e ]\n [ interfaces ae0 unit \u003cunit#\u003e family inet(6) address ... ]"
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"lang": "eng",
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause the PFE to reset. This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect versions of Junos OS prior to 19.4R1."
}
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},
"exploit": [
{
"lang": "eng",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
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"generator": {
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},
"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"
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"value": "Denial of Service (DoS)"
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"value": "CWE-754 Improper Check for Unusual or Exceptional Conditions"
}
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}
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},
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"name": "https://kb.juniper.net/JSA11277",
"refsource": "CONFIRM",
"url": "https://kb.juniper.net/JSA11277"
}
]
},
"solution": [
{
"lang": "eng",
"value": "The following Junos OS software releases have been updated to resolve this specific issue: 19.4R3-S7, 20.1R3-S3, 20.2R3-S3, 20.3R3-S2, 20.4R3-S1, 21.1R3, 21.2R2, 21.3R1-S1, 21.3R2, 21.4R1, and all subsequent releases."
}
],
"source": {
"advisory": "JSA11277",
"defect": [
"1625292"
],
"discovery": "INTERNAL"
},
"work_around": [
{
"lang": "eng",
"value": "There are no viable workarounds for this issue."
}
]
},
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"ID": "CVE-2022-22171"
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"data_type": "CVE",
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"description": {
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"lang": "en",
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause a Denial of Service (DoS) by sending specific packets over VXLAN which cause the PFE to reset. This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S2; 20.4 versions prior to 20.4R3-S1; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2; 21.3 versions prior to 21.3R1-S1, 21.3R2. This issue does not affect versions of Junos OS prior to 19.4R1."
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},
"lastModifiedDate": "2022-01-26T18:35Z",
"publishedDate": "2022-01-19T01:15Z"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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