github - ghsa-hr3q-mvqf-hmmc

ghsa-hr3q-mvqf-hmmc

Vulnerability from github

Published

2022-05-24 17:48

Modified

2022-05-24 17:48

Details

In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit (AFT) manager process (Evo-aftmand), responsible for handling Route, Class-of-Service (CoS), Firewall operations within the packet forwarding engine (PFE) to crash and restart, leading to a Denial of Service (DoS) condition. By continuously sending this specific stream of genuine Layer 2 frames, an attacker can repeatedly crash the PFE, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R1-EVO. This issue does not affect Junos OS versions.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-0239"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-22T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit (AFT) manager process (Evo-aftmand), responsible for handling Route, Class-of-Service (CoS), Firewall operations within the packet forwarding engine (PFE) to crash and restart, leading to a Denial of Service (DoS) condition. By continuously sending this specific stream of genuine Layer 2 frames, an attacker can repeatedly crash the PFE, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R1-EVO. This issue does not affect Junos OS versions.",
  "id": "GHSA-hr3q-mvqf-hmmc",
  "modified": "2022-05-24T17:48:12Z",
  "published": "2022-05-24T17:48:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0239"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11134"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-0239

Vulnerability from cvelistv5

Published

2021-04-22 19:37

Modified

2024-09-16 17:49

Severity ?

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

Junos OS Evolved: Denial of Service due to receipt of specific genuine layer 2 frames.

References

▼	URL	Tags
	https://kb.juniper.net/JSA11134	x_refsource_MISC

Impacted products

▼	Vendor	Product
	Juniper Networks	Junos OS Evolved

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-03T15:32:09.949Z",
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        "references": [
          {
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              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11134"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "Juniper Networks",
          "versions": [
            {
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
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      ],
      "datePublic": "2021-04-14T00:00:00",
      "descriptions": [
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          "value": "In Juniper Networks Junos OS Evolved, receipt of a stream of specific genuine Layer 2 frames may cause the Advanced Forwarding Toolkit (AFT) manager process (Evo-aftmand), responsible for handling Route, Class-of-Service (CoS), Firewall operations within the packet forwarding engine (PFE) to crash and restart, leading to a Denial of Service (DoS) condition. By continuously sending this specific stream of genuine Layer 2 frames, an attacker can repeatedly crash the PFE, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R1-EVO. This issue does not affect Junos OS versions."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
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            "attackVector": "ADJACENT_NETWORK",
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            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
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      "solutions": [
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          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 20.4R1-EVO, and all subsequent releases."
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      "source": {
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          "value": "There are no viable workarounds for this issue."
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      "x_generator": {
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      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-04-14T16:00:00.000Z",
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          "STATE": "PUBLIC",
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    "datePublished": "2021-04-22T19:37:05.415854Z",
    "dateReserved": "2020-10-27T00:00:00",
    "dateUpdated": "2024-09-16T17:49:30.356Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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