{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:55:53.730Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11251"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.2R1",
              "status": "unaffected",
              "version": "unspecified",
              "versionType": "custom"
            },
            {
              "lessThan": "19.2R3-S2",
              "status": "affected",
              "version": "19.2",
              "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-S3",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R2-S2, 20.1R3",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            },
            {
              "lessThan": "20.2R2-S3, 20.2R3",
              "status": "affected",
              "version": "20.2",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R2",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "20.1R3-EVO",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            },
            {
              "lessThan": "20.2R3-EVO",
              "status": "affected",
              "version": "20.2",
              "versionType": "custom"
            },
            {
              "lessThan": "20.3R2-EVO",
              "status": "affected",
              "version": "20.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "The following configuration is required for Junos OS:\n  [protocols ldp p2mp]\n  [protocols ldp interface \"interface\"]\n  [protocols ldp traffic-statistics {sensor-based-stats;}]\n\nThe following configuration is required for Junos OS Evolved: \n  [configuration protocols ldp p2mp]\n  [configuration protocols ldp interface \"interface\"]"
        }
      ],
      "datePublic": "2021-10-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Point to MultiPoint (P2MP) scenarios within established sessions between network or adjacent neighbors the improper use of a source to destination copy write operation combined with a Stack-based Buffer Overflow on certain specific packets processed by the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved sent by a remote unauthenticated network attacker causes the RPD to crash causing a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1. Juniper Networks Junos OS Evolved 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "improper usage of a source to destination copy write operation",
              "lang": "en",
              "type": "text"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "Denial of Service (DoS)",
              "lang": "en",
              "type": "text"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-19T18:17:26.000Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11251"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA11251",
        "defect": [
          "1558672"
        ],
        "discovery": "INTERNAL"
      },
      "title": "Junos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various crafted packets causes RPD to core.",
      "workarounds": [
        {
          "lang": "en",
          "value": "For Junos OS you can remove the traffic-statistics from the configuration to work around this issue.\n\n  [protoccols ldp traffic-statistics {sensor-based-stats;}]\n\nFor Junos OS Evolved there are no viable workarounds for this issue."
        }
      ],
      "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-2021-31383",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS and Junos OS Evolved: In Point to MultiPoint (P2MP) scenarios receipt of various crafted packets causes RPD to core."
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Junos OS",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "19.2",
                            "version_value": "19.2R3-S2"
                          },
                          {
                            "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-S3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.1",
                            "version_value": "20.1R2-S2, 20.1R3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.2",
                            "version_value": "20.2R2-S3, 20.2R3"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.3",
                            "version_value": "20.3R2"
                          },
                          {
                            "version_affected": "!\u003c",
                            "version_value": "19.2R1"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "Junos OS Evolved",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.1",
                            "version_value": "20.1R3-EVO"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.2",
                            "version_value": "20.2R3-EVO"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.3",
                            "version_value": "20.3R2-EVO"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Juniper Networks"
              }
            ]
          }
        },
        "configuration": [
          {
            "lang": "en",
            "value": "The following configuration is required for Junos OS:\n  [protocols ldp p2mp]\n  [protocols ldp interface \"interface\"]\n  [protocols ldp traffic-statistics {sensor-based-stats;}]\n\nThe following configuration is required for Junos OS Evolved: \n  [configuration protocols ldp p2mp]\n  [configuration protocols ldp interface \"interface\"]"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Point to MultiPoint (P2MP) scenarios within established sessions between network or adjacent neighbors the improper use of a source to destination copy write operation combined with a Stack-based Buffer Overflow on certain specific packets processed by the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved sent by a remote unauthenticated network attacker causes the RPD to crash causing a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1. Juniper Networks Junos OS Evolved 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
          }
        ],
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "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"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "improper usage of a source to destination copy write operation"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (DoS)"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-121 Stack-based Buffer Overflow"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.juniper.net/JSA11251",
              "refsource": "CONFIRM",
              "url": "https://kb.juniper.net/JSA11251"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2, 20.4R1, and all subsequent releases.\n\nJunos OS Evolved: 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases."
          }
        ],
        "source": {
          "advisory": "JSA11251",
          "defect": [
            "1558672"
          ],
          "discovery": "INTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "For Junos OS you can remove the traffic-statistics from the configuration to work around this issue.\n\n  [protoccols ldp traffic-statistics {sensor-based-stats;}]\n\nFor Junos OS Evolved there are no viable workarounds for this issue."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-31383",
    "datePublished": "2021-10-19T18:17:26.471Z",
    "dateReserved": "2021-04-15T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:21:34.268Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}