FKIE_CVE-2020-1678

Vulnerability from fkie_nvd - Published: 2020-10-16 21:15 - Updated: 2026-06-17 03:02
Severity
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
On Juniper Networks Junos OS and Junos OS Evolved platforms with EVPN configured, receipt of specific BGP packets causes a slow memory leak. If the memory is exhausted the rpd process might crash. If the issue occurs, the memory leak could be seen by executing the "show task memory detail | match policy | match evpn" command multiple times to check if memory (Alloc Blocks value) is increasing. root@device> show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 3330678 79936272 3330678 79936272 root@device> show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 36620255 878886120 36620255 878886120 This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R2; 20.1 versions prior to 20.1R1-S4, 20.1R2; Juniper Networks Junos OS Evolved: 19.4 versions; 20.1 versions prior to 20.1R1-S4-EVO, 20.1R2-EVO; 20.2 versions prior to 20.2R1-EVO; This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.
References
sirt@juniper.nethttps://kb.juniper.net/JSA11075Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.juniper.net/JSA11075Vendor Advisory
Impacted products
Vendor Product Version
juniper junos 19.4
juniper junos 19.4
juniper junos 19.4
juniper junos 20.1
juniper junos 20.1
juniper junos 20.1
juniper junos 20.1
juniper junos_os_evolved 19.4
juniper junos_os_evolved 19.4
juniper junos_os_evolved 19.4
juniper junos_os_evolved 20.1
juniper junos_os_evolved 20.1
juniper junos_os_evolved 20.2
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.4R2",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R1-S4, 20.1R2",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "status": "affected",
              "version": "19.4-EVO"
            },
            {
              "lessThan": "20.1R1-S4-EVO, 20.1R2-EVO",
              "status": "affected",
              "version": "20.1-EVO",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "sirt@juniper.net"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*",
              "matchCriteriaId": "DC743EE4-8833-452A-94DB-655BF139F883",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*",
              "matchCriteriaId": "FE96A8EA-FFE3-4D8F-9266-21899149D634",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*",
              "matchCriteriaId": "C12A75C6-2D00-4202-B861-00FF71585FA0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*",
              "matchCriteriaId": "8328FDE6-9707-4142-B905-3B07C0E28E35",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "41CD982F-E6F2-4951-9F96-A76C142DF08E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*",
              "matchCriteriaId": "19FDC05F-5582-4F7E-B628-E58A3C0E7F2F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*",
              "matchCriteriaId": "401306D1-E9CE-49C6-8DC9-0E8747B9DC2C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*",
              "matchCriteriaId": "83447F3F-79A3-41DF-8FD1-31DCFCBE40A4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*",
              "matchCriteriaId": "2B14CED1-BEAF-4343-A05D-FB1E2B6AC955",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*",
              "matchCriteriaId": "ABB91C38-8C70-436A-83DB-42B8DF81D7D8",
              "vulnerable": true
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            {
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              "vulnerable": true
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              "vulnerable": true
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            {
              "criteria": "cpe:2.3:o:juniper:junos_os_evolved:20.2:-:*:*:*:*:*:*",
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              "vulnerable": true
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          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "On Juniper Networks Junos OS and Junos OS Evolved platforms with EVPN configured, receipt of specific BGP packets causes a slow memory leak. If the memory is exhausted the rpd process might crash. If the issue occurs, the memory leak could be seen by executing the \"show task memory detail | match policy | match evpn\" command multiple times to check if memory (Alloc Blocks value) is increasing. root@device\u003e show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 3330678 79936272 3330678 79936272 root@device\u003e show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 36620255 878886120 36620255 878886120 This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R2; 20.1 versions prior to 20.1R1-S4, 20.1R2; Juniper Networks Junos OS Evolved: 19.4 versions; 20.1 versions prior to 20.1R1-S4-EVO, 20.1R2-EVO; 20.2 versions prior to 20.2R1-EVO; This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO."
    },
    {
      "lang": "es",
      "value": "En las plataformas Juniper Networks Junos OS y Junos OS Evolved con EVPN configurado, la recepci\u00f3n de paquetes BGP espec\u00edficos causa un filtrado de la memoria lento.\u0026#xa0;Si se agota la memoria, el proceso rpd podr\u00eda bloquearse.\u0026#xa0;Si ocurre el problema, el filtrado de la memoria puede ser visualizado ejecutando el comando \"show task memory detail | match policy | match evpn\" varias veces para comprobar  si la memoria (valor de Alloc Blocks) est\u00e1 aumentando.\u0026#xa0;root@device) show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 3330678 79936272 3330678 79936272 root@device\u0026gt; show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 36620255 878886120 36620255 878886120. Este problema afecta a: Juniper Networks Junos OS versiones 19.4 anteriores a 19.4R2;\u0026#xa0;versiones 20.1 anteriores a 20.1R1-S4, 20.1R2;\u0026#xa0;Juniper Networks Junos OS Evolved: versiones 19.4;\u0026#xa0;versiones 20.1 anteriores a 20.1R1-S4-EVO, 20.1R2-EVO;\u0026#xa0;versiones 20.2 anteriores a 20.2R1-EVO;\u0026#xa0;Este problema no afecta: Juniper Networks Junos OS versiones anteriores a 19.4R1.\u0026#xa0;Juniper Networks Junos OS Evolved versiones anteriores a 19.4R1-EVO"
    }
  ],
  "id": "CVE-2020-1678",
  "lastModified": "2026-06-17T03:02:10.980",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 5.5,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "sirt@juniper.net",
        "type": "Secondary"
      }
    ]
  },
  "published": "2020-10-16T21:15:13.630",
  "references": [
    {
      "source": "sirt@juniper.net",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.juniper.net/JSA11075"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.juniper.net/JSA11075"
    }
  ],
  "sourceIdentifier": "sirt@juniper.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "sirt@juniper.net",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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