ghsa-8pvv-px4f-4px7
Vulnerability from github
Published
2023-10-11 21:33
Modified
2024-03-06 00:31
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 Improper Handling of Exceptional Conditions vulnerability in AS PATH processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a BGP update message with an AS PATH containing a large number of 4-byte ASes, leading to a Denial of Service (DoS). Continued receipt and processing of these BGP updates will create a sustained Denial of Service (DoS) condition.

This issue is hit when the router has Non-Stop Routing (NSR) enabled, has a non-4-byte-AS capable BGP neighbor, receives a BGP update message with a prefix that includes a long AS PATH containing large number of 4-byte ASes, and has to advertise the prefix towards the non-4-byte-AS capable BGP neighbor.

This issue affects:

Juniper Networks Junos OS:

  • All versions prior to 20.4R3-S8;
  • 21.1 versions 21.1R1 and later;
  • 21.2 versions prior to 21.2R3-S6;
  • 21.3 versions prior to 21.3R3-S5;
  • 21.4 versions prior to 21.4R3-S5;
  • 22.1 versions prior to 22.1R3-S4;
  • 22.2 versions prior to 22.2R3-S2;
  • 22.3 versions prior to 22.3R2-S2, 22.3R3-S1;
  • 22.4 versions prior to 22.4R2-S1, 22.4R3;
  • 23.2 versions prior to 23.2R2.

Juniper Networks Junos OS Evolved

  • All versions prior to 20.4R3-S8-EVO;
  • 21.1 versions 21.1R1-EVO and later;
  • 21.2 versions prior to 21.2R3-S6-EVO;
  • 21.3 versions prior to 21.3R3-S5-EVO;
  • 21.4 versions prior to 21.4R3-S5-EVO;
  • 22.1 versions prior to 22.1R3-S4-EVO;
  • 22.2 versions prior to 22.2R3-S2-EVO;
  • 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;
  • 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;
  • 23.2 versions prior to 23.2R2-EVO.
Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2023-44186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-755"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-11T21:15:09Z",
    "severity": "HIGH"
  },
  "details": "\nAn Improper Handling of Exceptional Conditions vulnerability in AS PATH processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a BGP update message with an AS PATH containing a large number of 4-byte ASes, leading to a Denial of Service (DoS). Continued receipt and processing of these BGP updates will create a sustained Denial of Service (DoS) condition.\n\nThis issue is hit when the router has Non-Stop Routing (NSR) enabled, has a non-4-byte-AS capable BGP neighbor, receives a BGP update message with a prefix that includes a long AS PATH containing large number of 4-byte ASes, and has to advertise the prefix towards the non-4-byte-AS capable BGP neighbor.\n\nThis issue affects:\n\nJuniper Networks Junos OS:\n\n\n\n  *  All versions prior to 20.4R3-S8;\n  *  21.1 versions 21.1R1 and later;\n  *  21.2 versions prior to 21.2R3-S6;\n  *  21.3 versions prior to 21.3R3-S5;\n  *  21.4 versions prior to 21.4R3-S5;\n  *  22.1 versions prior to 22.1R3-S4;\n  *  22.2 versions prior to 22.2R3-S2;\n  *  22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\n  *  22.4 versions prior to 22.4R2-S1, 22.4R3;\n  *  23.2 versions prior to 23.2R2.\n\n\n\n\nJuniper Networks Junos OS Evolved\n\n\n\n  *  All versions prior to 20.4R3-S8-EVO;\n  *  21.1 versions 21.1R1-EVO and later;\n  *  21.2 versions prior to 21.2R3-S6-EVO;\n  *  21.3 versions prior to 21.3R3-S5-EVO;\n  *  21.4 versions prior to 21.4R3-S5-EVO;\n  *  22.1 versions prior to 22.1R3-S4-EVO;\n  *  22.2 versions prior to 22.2R3-S2-EVO;\n  *  22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n  *  22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\n  *  23.2 versions prior to 23.2R2-EVO.\n\n\n\n\n\n\n",
  "id": "GHSA-8pvv-px4f-4px7",
  "modified": "2024-03-06T00:31:26Z",
  "published": "2023-10-11T21:33:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44186"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA73150"
    }
  ],
  "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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