CVE-2021-31351 (GCVE-0-2021-31351)

Vulnerability from cvelistv5 – Published: 2021-10-19 18:16 – Updated: 2024-09-17 01:26
VLAI
Title
Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset
Summary
An Improper Check for Unusual or Exceptional Conditions in packet processing on the MS-MPC/MS-MIC utilized by Juniper Networks Junos OS allows a malicious attacker to send a specific packet, triggering the MS-MPC/MS-MIC to reset, causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects specific versions of Juniper Networks Junos OS on MX Series: 17.3R3-S11; 17.4R2-S13; 17.4R3 prior to 17.4R3-S5; 18.1R3-S12; 18.2R2-S8, 18.2R3-S7, 18.2R3-S8; 18.3R3-S4; 18.4R3-S7; 19.1R3-S4, 19.1R3-S5; 19.2R1-S6; 19.3R3-S2; 19.4R2-S4, 19.4R2-S5; 19.4R3-S2; 20.1R2-S1; 20.2R2-S2, 20.2R2-S3, 20.2R3; 20.3R2, 20.3R2-S1; 20.4R1, 20.4R1-S1, 20.4R2; 21.1R1; This issue does not affect any version of Juniper Networks Junos OS prior to 15.1X49-D240;
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-754 - Improper Check for Unusual or Exceptional Conditions
  • Denial of Service (DoS)
Assigner
juniper CNA under the mitre root
CNA scorecard B 84/100 over 193 records in the last 180 days details
References
URL Tags
https://kb.juniper.net/JSA11216 x_refsource_CONFIRM
Impacted products
Vendor Product Version CPE status
Juniper Networks Junos OS Unaffected: unspecified , < 15.1 (custom)
Unaffected: 17.3 , < 17.3R3-S11 (custom)
Unaffected: 17.4R3 , < 17.4* (custom)
guessed Create a notification for this product.
Juniper Networks Junos OS Affected: 17.3R3-S11
Affected: 18.1R3-S12
Affected: 18.3R3-S4
Affected: 18.4R3-S7
Affected: 19.1R3-S4, 19.1R3-S5
Affected: 19.2R1-S6
Affected: 19.3R3-S2
Affected: 19.4R3-S2
Affected: 20.1R2-S1
Affected: 20.2R3
Affected: 20.3R2
Affected: 17.4R2-S13 , < 17.4* (custom)
Affected: 18.2R2-S8, 18.2R3-S7 , < 18.2* (custom)
Affected: 18.4R1-S8, 18.4R2-S7 , < 18.4* (custom)
Affected: 19.4R2-S4 , < 19.4* (custom)
Affected: 20.2R2-S2 , < 20.2* (custom)
Affected: 20.3R1-S2 , < 20.3* (custom)
Affected: 20.4 , < 20.4R2-S1, 20.4R3 (custom)
Affected: 21.1 , < 21.1R1-S1, 21.1R2 (custom)
guessed Create a notification for this product.
Date Public
2021-10-13 00:00
Show details on NVD website
To clipboard 

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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An Improper Check for Unusual or Exceptional Conditions in packet processing on the MS-MPC/MS-MIC utilized by Juniper Networks Junos OS allows a malicious attacker to send a specific packet, triggering the MS-MPC/MS-MIC to reset, causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects specific versions of Juniper Networks Junos OS on MX Series: 17.3R3-S11; 17.4R2-S13; 17.4R3 prior to 17.4R3-S5; 18.1R3-S12; 18.2R2-S8, 18.2R3-S7, 18.2R3-S8; 18.3R3-S4; 18.4R3-S7; 19.1R3-S4, 19.1R3-S5; 19.2R1-S6; 19.3R3-S2; 19.4R2-S4, 19.4R2-S5; 19.4R3-S2; 20.1R2-S1; 20.2R2-S2, 20.2R2-S3, 20.2R3; 20.3R2, 20.3R2-S1; 20.4R1, 20.4R1-S1, 20.4R2; 21.1R1; This issue does not affect any version of Juniper Networks Junos OS prior to 15.1X49-D240;"
          },
          {
            "lang": "es",
            "value": "Una comprobaci\u00f3n inapropiada de condiciones inusuales o excepcionales en el procesamiento de paquetes en el MS-MPC/MS-MIC usado por Juniper Networks Junos OS permite a un atacante malicioso enviar un paquete espec\u00edfico, haciendo que el MS-MPC/MS-MIC se reinicie, causando una Denegaci\u00f3n de Servicio (DoS). Si se sigue recibiendo y procesando este paquete, se crear\u00e1 una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS) sostenida. Este problema s\u00f3lo afecta a versiones espec\u00edficas de Juniper Networks Junos OS en la serie MX: 17.3R3-S11; 17.4R2-S13; 17.4R3 anterior a 17.4R3-S5; 18.1R3-S12; 18.2R2-S8, 18.2R3-S7, 18.2R3-S8; 18.3R3-S4; 18.4R3-S7; 19.1R3-S4, 19.1R3-S5; 19.2R1-S6; 19.3R3-S2; 19.4R2-S4, 19.4R2-S5; 19. 4R3-S2; 20.1R2-S1; 20.2R2-S2, 20.2R2-S3, 20.2R3; 20.3R2, 20.3R2-S1; 20.4R1, 20.4R1-S1, 20.4R2; 21.1R1; Este problema no afecta a ninguna versi\u00f3n de Juniper Networks Junos OS anterior a la 15.1X49-D240;"
          }
        ],
        "id": "CVE-2021-31351",
        "lastModified": "2024-11-21T06:05:28.723",
        "metrics": {
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            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
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              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
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                "attackVector": "NETWORK",
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                "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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              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "sirt@juniper.net",
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        "published": "2021-10-19T19:15:08.597",
        "references": [
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            "source": "sirt@juniper.net",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://kb.juniper.net/JSA11216"
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          {
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        "vulnStatus": "Modified",
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                "value": "CWE-754"
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            ],
            "source": "sirt@juniper.net",
            "type": "Secondary"
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                "value": "CWE-754"
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            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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        ]
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    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T14:08:35+00:00",
      "cve": "CVE-2021-31351",
      "id": "CVE-2021-31351",
      "initial_release_date": "2021-10-13T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Junos OS: MX Series: Receipt of specific packet on MS-MPC/MS-MIC causes line card reset",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-31351.json",
      "version": "3"
    }
  }
}



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