CVE-2023-36839 (GCVE-0-2023-36839)
Vulnerability from cvelistv5
Published
2023-10-12 22:56
Modified
2024-09-18 18:03
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1284 - Improper Validation of Specified Quantity in Input
  • Denial of Service (DoS)
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS). This issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. This issue affects: Juniper Networks Junos OS * All versions prior to 20.4R3-S8; * 21.1 version 21.1R1 and later versions; * 21.2 versions prior to 21.2R3-S5; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S2; * 22.2 versions prior to 22.2R3; * 22.3 versions prior to 22.3R2-S2; * 22.4 versions prior to 22.4R2; Juniper Networks Junos OS Evolved * All versions prior to 20.4R3-S8-EVO; * 21.1 version 21.1R1-EVO and later versions; * 21.2 versions prior to 21.2R3-S5-EVO; * 21.3 versions prior to 21.3R3-S4-EVO; * 21.4 versions prior to 21.4R3-S3-EVO; * 22.1 versions prior to 22.1R3-S2-EVO; * 22.2 versions prior to 22.2R3-EVO; * 22.3 versions prior to 22.3R2-S2-EVO; * 22.4 versions prior to 22.4R1-S1-EVO;
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Version: 0   ≤
Version: 21.1R1   ≤
Version: 21.2   ≤
Version: 21.3   ≤
Version: 21.4   ≤
Version: 22.1   ≤
Version: 22.2   ≤
Version: 22.3   ≤
Version: 22.4   ≤
Create a notification for this product.
   Juniper Networks Junos OS Evolved Version: 0   ≤
Version: 21.1R1-EVO   ≤
Version: 21.2-EVO   ≤
Version: 21.3-EVO   ≤
Version: 21.4-EVO   ≤
Version: 22.1-EVO   ≤
Version: 22.2-EVO   ≤
Version: 22.3-EVO   ≤
Version: 22.4-EVO   ≤
Create a notification for this product.
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\u003c/p\u003e\u003cp\u003eJunos OS: 20.4R3-S8, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.\u003c/p\u003e\u003cp\u003eJunos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S3-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-S2-EVO, 22.3R3-EVO, 22.4R1-S1-EVO, 22.4R2-EVO, 23.1R1-EVO, 23.1R2-EVO, 23.2R1-EVO\u003c/p\u003e\", \"base64\": false}]}], \"datePublic\": \"2023-10-11T16:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA73171\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"If LLDP and its services are not required, customers can disable LLDP. Disabling telemetry polling also mitigates the issue.\\n\\nThere are no other known workarounds for this issue.\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eIf LLDP and its services are not required, customers can disable LLDP. Disabling telemetry polling also mitigates the issue.\u003c/p\u003e\u003cp\u003eThere are no other known workarounds for this issue.\u003c/p\u003e\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-av217\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"\\nAn Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).\\n\\nThis issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\\n\\nThis issue affects:\\n\\nJuniper Networks Junos OS\\n\\n\\n\\n  *  All versions prior to 20.4R3-S8;\\n  *  21.1 version 21.1R1 and later versions;\\n  *  21.2 versions prior to 21.2R3-S5;\\n  *  21.3 versions prior to 21.3R3-S4;\\n  *  21.4 versions prior to 21.4R3-S3;\\n  *  22.1 versions prior to 22.1R3-S2;\\n  *  22.2 versions prior to 22.2R3;\\n  *  22.3 versions prior to 22.3R2-S2;\\n  *  22.4 versions prior to 22.4R2;\\n\\n\\n\\n\\nJuniper Networks Junos OS Evolved\\n\\n\\n\\n  *  All versions prior to 20.4R3-S8-EVO;\\n  *  21.1 version 21.1R1-EVO and later versions;\\n  *  21.2 versions prior to 21.2R3-S5-EVO;\\n  *  21.3 versions prior to 21.3R3-S4-EVO;\\n  *  21.4 versions prior to 21.4R3-S3-EVO;\\n  *  22.1 versions prior to 22.1R3-S2-EVO;\\n  *  22.2 versions prior to 22.2R3-EVO;\\n  *  22.3 versions prior to 22.3R2-S2-EVO;\\n  *  22.4 versions prior to 22.4R1-S1-EVO;\\n\\n\\n\\n\\n\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\\n\\n\u003cp\u003eAn Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).\u003c/p\u003e\u003cp\u003eThis issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\u003c/p\u003e\u003cp\u003eThis issue affects:\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S8;\u003c/li\u003e\u003cli\u003e21.1 version 21.1R1 and later versions;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S5;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S4;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S3;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S2;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R3;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R2-S2;\u003c/li\u003e\u003cli\u003e22.4 versions prior to 22.4R2;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eJuniper Networks Junos OS Evolved\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions prior to 20.4R3-S8-EVO;\u003c/li\u003e\u003cli\u003e21.1 version 21.1R1-EVO and later versions;\u003c/li\u003e\u003cli\u003e21.2 versions prior to 21.2R3-S5-EVO;\u003c/li\u003e\u003cli\u003e21.3 versions prior to 21.3R3-S4-EVO;\u003c/li\u003e\u003cli\u003e21.4 versions prior to 21.4R3-S3-EVO;\u003c/li\u003e\u003cli\u003e22.1 versions prior to 22.1R3-S2-EVO;\u003c/li\u003e\u003cli\u003e22.2 versions prior to 22.2R3-EVO;\u003c/li\u003e\u003cli\u003e22.3 versions prior to 22.3R2-S2-EVO;\u003c/li\u003e\u003cli\u003e22.4 versions prior to 22.4R1-S1-EVO;\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\\n\\n\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1284\", \"description\": \" CWE-1284: Improper Validation of Specified Quantity in Input\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"Denial of Service (DoS)\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"This vulnerability is only exploitable on interfaces with LLDP enabled.\\n\\n[ protocols lldp interface ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cp\u003eThis vulnerability is only exploitable on interfaces with LLDP enabled.\u003c/p\u003e\u003ctt\u003e[ protocols lldp interface ]\u003c/tt\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2023-10-12T22:56:24.897Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-36839\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-09-18T18:03:21.702Z\", \"dateReserved\": \"2023-06-27T16:17:25.276Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2023-10-12T22:56:24.897Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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