github - ghsa-mh4w-qhp7-f8v8

ghsa-mh4w-qhp7-f8v8

Vulnerability from github

Published

2022-05-24 19:17

Modified

2022-05-24 19:17

Details

In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R2-S3-EVO; 20.3 versions prior to 20.3R1-S2-EVO.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-31363"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-19T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R2-S3-EVO; 20.3 versions prior to 20.3R1-S2-EVO.",
  "id": "GHSA-mh4w-qhp7-f8v8",
  "modified": "2022-05-24T19:17:53Z",
  "published": "2022-05-24T19:17:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31363"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA11225"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2021-31363

Vulnerability from cvelistv5

Published

2021-10-19 18:16

Modified

2024-09-16 16:23

Severity ?

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

Junos OS and Junos OS Evolved: Receipt of a specific LDP message will cause a Denial of Service

References

▼	URL	Tags
	https://kb.juniper.net/JSA11225	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	Juniper Networks	Junos OS
	Juniper Networks	Junos OS Evolved

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:55:53.632Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11225"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.2R2",
              "status": "unaffected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "changes": [
                {
                  "at": "19.2R3-S3",
                  "status": "unaffected"
                }
              ],
              "lessThan": "19.2*",
              "status": "affected",
              "version": "19.2R2",
              "versionType": "custom"
            },
            {
              "lessThan": "19.3R2-S6, 19.3R3-S2",
              "status": "affected",
              "version": "19.3",
              "versionType": "custom"
            },
            {
              "lessThan": "19.4R1-S4, 19.4R2-S4, 19.4R3-S2",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R2-S1, 20.1R3",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            },
            {
              "lessThan": "20.2R2-S1, 20.2R3",
              "status": "affected",
              "version": "20.2",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R1-S2, 20.3R2",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "20.1R2-S3-EVO",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R1-S2-EVO",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "A vulnerable Junos OS configuration would need to have:\n  [protocols ldp p2mp]\nand\n  [protocols ldp traffic-statistics sensor-based-stats]\n\nFor Junos OS Evolved only:\n  [protocols ldp p2mp]\nis need as sensor-based-stats is the default setting which can\u0027t be changed."
        }
      ],
      "datePublic": "2021-10-13T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R2-S3-EVO; 20.3 versions prior to 20.3R1-S2-EVO."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
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              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-19T18:16:50",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11225"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue in Junos OS: 19.2R3-S3, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S2, 20.1R2-S1, 20.1R3, 20.2R2-S1, 20.2R3, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases.\n\nThe following software releases have been updated to resolve this specific issue in Junos OS Evolved: 20.1R2-S3-EVO, 20.3R1-S2-EVO, 20.4R1-EVO, and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA11225",
        "defect": [
          "1552041"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS and Junos OS Evolved: Receipt of a specific LDP message will cause a Denial of Service",
      "workarounds": [
        {
          "lang": "en",
          "value": "For Junos OS turn off sensor-based-stats by deleting:\n\n  [protocols ldp traffic-statistics sensor-based-stats]\n\nFor Junos OS Evolved mLDP will have to be turned off as sensor-based-stats is the default:\n\n  [protocols ldp p2mp]"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-10-13T16:00:00.000Z",
          "ID": "CVE-2021-31363",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS and Junos OS Evolved: Receipt of a specific LDP message will cause a Denial of Service"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Junos OS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003e=",
                            "version_name": "19.2",
                            "version_value": "19.2R2"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "19.2",
                            "version_value": "19.2R3-S3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "19.3",
                            "version_value": "19.3R2-S6, 19.3R3-S2"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "19.4",
                            "version_value": "19.4R1-S4, 19.4R2-S4, 19.4R3-S2"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.1",
                            "version_value": "20.1R2-S1, 20.1R3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.2",
                            "version_value": "20.2R2-S1, 20.2R3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.3",
                            "version_value": "20.3R1-S2, 20.3R2"
                          },
                          {
                            "version_affected": "!\u003c",
                            "version_value": "19.2R2"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Junos OS Evolved",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "20.1R2-S3-EVO"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.3",
                            "version_value": "20.3R1-S2-EVO"
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                "vendor_name": "Juniper Networks"
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        },
        "configuration": [
          {
            "lang": "en",
            "value": "A vulnerable Junos OS configuration would need to have:\n  [protocols ldp p2mp]\nand\n  [protocols ldp traffic-statistics sensor-based-stats]\n\nFor Junos OS Evolved only:\n  [protocols ldp p2mp]\nis need as sensor-based-stats is the default setting which can\u0027t be changed."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific LDP FEC this can lead to the above condition. Continued receipted of such an LDP FEC will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 version 19.2R2 and later versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R2-S3-EVO; 20.3 versions prior to 20.3R1-S2-EVO."
            }
          ]
        },
        "exploit": [
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            "lang": "en",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
          }
        ],
        "generator": {
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            "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"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (DoS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.juniper.net/JSA11225",
              "refsource": "CONFIRM",
              "url": "https://kb.juniper.net/JSA11225"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "The following software releases have been updated to resolve this specific issue in Junos OS: 19.2R3-S3, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S2, 20.1R2-S1, 20.1R3, 20.2R2-S1, 20.2R3, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases.\n\nThe following software releases have been updated to resolve this specific issue in Junos OS Evolved: 20.1R2-S3-EVO, 20.3R1-S2-EVO, 20.4R1-EVO, and all subsequent releases."
          }
        ],
        "source": {
          "advisory": "JSA11225",
          "defect": [
            "1552041"
          ],
          "discovery": "USER"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "For Junos OS turn off sensor-based-stats by deleting:\n\n  [protocols ldp traffic-statistics sensor-based-stats]\n\nFor Junos OS Evolved mLDP will have to be turned off as sensor-based-stats is the default:\n\n  [protocols ldp p2mp]"
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-31363",
    "datePublished": "2021-10-19T18:16:50.581451Z",
    "dateReserved": "2021-04-15T00:00:00",
    "dateUpdated": "2024-09-16T16:23:31.512Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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