ghsa-h4g9-rx7v-v6rf
Vulnerability from github
Published
2024-01-12 03:30
Modified
2024-01-12 03:30
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

If a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit these packets which should prevent this issue from occurring.

The following log messages can be seen when this issue occurs:

kernel: nf_conntrack: nf_conntrack: table full, dropping packet This issue affects Juniper Networks Junos OS Evolved:

  • All versions earlier than 20.4R3-S7-EVO;
  • 21.2R1-EVO and later versions;
  • 21.4-EVO versions earlier than 21.4R3-S5-EVO;
  • 22.1-EVO versions earlier than 22.1R3-S2-EVO;
  • 22.2-EVO versions earlier than 22.2R3-EVO;
  • 22.3-EVO versions earlier than 22.3R2-EVO;
  • 22.4-EVO versions earlier than 22.4R2-EVO.
Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-21604"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-12T01:15:48Z",
    "severity": "HIGH"
  },
  "details": "\nAn Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nIf a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit these packets which should prevent this issue from occurring.\n\nThe following log messages can be seen when this issue occurs:\n\n\u003chost\u003e kernel: nf_conntrack: nf_conntrack: table full, dropping packet\nThis issue affects Juniper Networks Junos OS Evolved:\n\n\n\n  *  All versions earlier than 20.4R3-S7-EVO;\n  *  21.2R1-EVO and later versions;\n  *  21.4-EVO versions earlier than 21.4R3-S5-EVO;\n  *  22.1-EVO versions earlier than 22.1R3-S2-EVO;\n  *  22.2-EVO versions earlier than 22.2R3-EVO;\n  *  22.3-EVO versions earlier than 22.3R2-EVO;\n  *  22.4-EVO versions earlier than 22.4R2-EVO.\n\n\n\n\n\n\n",
  "id": "GHSA-h4g9-rx7v-v6rf",
  "modified": "2024-01-12T03:30:48Z",
  "published": "2024-01-12T03:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21604"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA75745"
    },
    {
      "type": "WEB",
      "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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