Vulnerability-Lookup

VAR-202101-1886

Vulnerability from variot - Updated: 2023-12-18 14:00

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS

Show details on source website

JSON

To clipboard

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202101-1886",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "junos os evolved",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "juniper",
        "version": "20.1"
      },
      {
        "model": "junos os evolved",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "juniper",
        "version": "19.4"
      },
      {
        "model": "junos os evolved",
        "scope": null,
        "trust": 0.8,
        "vendor": "\u30b8\u30e5\u30cb\u30d1\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9",
        "version": null
      },
      {
        "model": "junos os evolved",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "\u30b8\u30e5\u30cb\u30d1\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      }
    ]
  },
  "configurations": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/configurations#",
      "children": {
        "@container": "@list"
      },
      "cpe_match": {
        "@container": "@list"
      },
      "data": {
        "@container": "@list"
      },
      "nodes": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      }
    ]
  },
  "cve": "CVE-2021-0209",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "acInsufInfo": false,
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "author": "NVD",
            "availabilityImpact": "COMPLETE",
            "baseScore": 5.7,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 5.5,
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "severity": "MEDIUM",
            "trust": 1.0,
            "userInteractionRequired": false,
            "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          {
            "acInsufInfo": null,
            "accessComplexity": "Medium",
            "accessVector": "Adjacent Network",
            "authentication": "None",
            "author": "NVD",
            "availabilityImpact": "Complete",
            "baseScore": 5.7,
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "CVE-2021-0209",
            "impactScore": null,
            "integrityImpact": "None",
            "obtainAllPrivilege": null,
            "obtainOtherPrivilege": null,
            "obtainUserPrivilege": null,
            "severity": "Medium",
            "trust": 0.8,
            "userInteractionRequired": null,
            "vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "author": "VULHUB",
            "availabilityImpact": "COMPLETE",
            "baseScore": 5.7,
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 5.5,
            "id": "VHN-372111",
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 0.1,
            "vectorString": "AV:A/AC:M/AU:N/C:N/I:N/A:C",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "author": "NVD",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitabilityScore": 2.8,
            "impactScore": 3.6,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 2.0,
            "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"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Adjacent Network",
            "author": "OTHER",
            "availabilityImpact": "High",
            "baseScore": 6.5,
            "baseSeverity": "Medium",
            "confidentialityImpact": "None",
            "exploitabilityScore": null,
            "id": "JVNDB-2021-002743",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "NVD",
            "id": "CVE-2021-0209",
            "trust": 1.8,
            "value": "MEDIUM"
          },
          {
            "author": "sirt@juniper.net",
            "id": "CVE-2021-0209",
            "trust": 1.0,
            "value": "MEDIUM"
          },
          {
            "author": "CNNVD",
            "id": "CNNVD-202101-1112",
            "trust": 0.6,
            "value": "MEDIUM"
          },
          {
            "author": "VULHUB",
            "id": "VHN-372111",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      }
    ],
    "trust": 1.71
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2021-0209",
        "trust": 2.5
      },
      {
        "db": "JUNIPER",
        "id": "JSA11099",
        "trust": 1.7
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743",
        "trust": 0.8
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112",
        "trust": 0.7
      },
      {
        "db": "VULHUB",
        "id": "VHN-372111",
        "trust": 0.1
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "id": "VAR-202101-1886",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      }
    ],
    "trust": 0.01
  },
  "last_update_date": "2023-12-18T14:00:17.635000Z",
  "patch": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/patch#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "title": "JSA11099",
        "trust": 0.8,
        "url": "https://kb.juniper.net/jsa11099"
      },
      {
        "title": "Juniper Networks Junos OS Evolved Buffer error vulnerability fix",
        "trust": 0.6,
        "url": "http://www.cnnvd.org.cn/web/xxk/bdxqbyid.tag?id=139553"
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-824",
        "trust": 1.1
      },
      {
        "problemtype": "Accessing uninitialized pointers (CWE-824) [NVD Evaluation ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 1.7,
        "url": "https://kb.juniper.net/jsa11099"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2021-0209"
      },
      {
        "trust": 0.6,
        "url": "https://vigilance.fr/vulnerability/junos-os-evolved-denial-of-service-via-bgp-update-regex-34329"
      }
    ],
    "sources": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-01-15T00:00:00",
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "date": "2021-09-29T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "date": "2021-01-15T18:15:15.027000",
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "date": "2021-01-13T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2021-10-25T00:00:00",
        "db": "VULHUB",
        "id": "VHN-372111"
      },
      {
        "date": "2021-09-29T08:26:00",
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      },
      {
        "date": "2021-10-25T15:20:20.700000",
        "db": "NVD",
        "id": "CVE-2021-0209"
      },
      {
        "date": "2021-01-25T00:00:00",
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ]
  },
  "threat_type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/threat_type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "remote or local",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ],
    "trust": 0.6
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "Juniper\u00a0Networks\u00a0Junos\u00a0OS\u00a0Evolved\u00a0 Vulnerability in accessing uninitialized pointers in",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2021-002743"
      }
    ],
    "trust": 0.8
  },
  "type": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/type#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "buffer error",
    "sources": [
      {
        "db": "CNNVD",
        "id": "CNNVD-202101-1112"
      }
    ],
    "trust": 0.6
  }
}

CVE-2021-0209 (GCVE-0-2021-0209)

Vulnerability from cvelistv5 – Published: 2021-01-15 17:35 – Updated: 2024-09-17 03:32

Title

Junos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD to core when using REGEX.

Summary

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-824 - Access of Uninitialized Pointer
Denial of Service (DoS)

Assigner

juniper mitre root

References

1 reference

URL	Tags
https://kb.juniper.net/JSA11099	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	Junos OS Evolved	Affected: 19.4 , < 19.4R2-S2-EVO (custom) Affected: 20.1 , < 20.1R1-S2-EVO, 20.1R2-S1-EVO (custom)

Date Public

2021-01-13 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T15:32:10.126Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.juniper.net/JSA11099"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Junos OS Evolved",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "19.4R2-S2-EVO",
              "status": "affected",
              "version": "19.4",
              "versionType": "custom"
            },
            {
              "lessThan": "20.1R1-S2-EVO, 20.1R2-S1-EVO",
              "status": "affected",
              "version": "20.1",
              "versionType": "custom"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "value": "The following minimal configuration which will vary by implementation is necessary:\n\n* Must be running Junos OS Evolved\n* A BGP peering session is configured.\n* Regular expressions (REGEX) are being used with BGP."
        }
      ],
      "datePublic": "2021-01-13T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS."
        }
      ],
      "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-824",
              "description": "CWE-824 Access of Uninitialized Pointer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "description": "Denial of Service (DoS)",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-15T17:35:56.000Z",
        "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "shortName": "juniper"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.juniper.net/JSA11099"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 19.4R2-S2-EVO, 20.1R1-S2-EVO, 20.1R2-S1-EVO, 20.2R1-EVO and all subsequent releases."
        }
      ],
      "source": {
        "advisory": "JSA11099",
        "defect": [
          "1517128"
        ],
        "discovery": "USER"
      },
      "title": "Junos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD to core when using REGEX.",
      "workarounds": [
        {
          "lang": "en",
          "value": "There are no available workarounds for this issue."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "sirt@juniper.net",
          "DATE_PUBLIC": "2021-01-13T16:00:00.000Z",
          "ID": "CVE-2021-0209",
          "STATE": "PUBLIC",
          "TITLE": "Junos OS Evolved: Receipt of certain valid BGP update packets from BGP peers may cause RPD to core when using REGEX."
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Junos OS Evolved",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "19.4",
                            "version_value": "19.4R2-S2-EVO"
                          },
                          {
                            "version_affected": "\u003c",
                            "version_name": "20.1",
                            "version_value": "20.1R1-S2-EVO, 20.1R2-S1-EVO"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Juniper Networks"
              }
            ]
          }
        },
        "configuration": [
          {
            "lang": "en",
            "value": "The following minimal configuration which will vary by implementation is necessary:\n\n* Must be running Junos OS Evolved\n* A BGP peering session is configured.\n* Regular expressions (REGEX) are being used with BGP."
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS."
            }
          ]
        },
        "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": "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-824 Access of Uninitialized Pointer"
                }
              ]
            },
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service (DoS)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.juniper.net/JSA11099",
              "refsource": "CONFIRM",
              "url": "https://kb.juniper.net/JSA11099"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 19.4R2-S2-EVO, 20.1R1-S2-EVO, 20.1R2-S1-EVO, 20.2R1-EVO and all subsequent releases."
          }
        ],
        "source": {
          "advisory": "JSA11099",
          "defect": [
            "1517128"
          ],
          "discovery": "USER"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "There are no available workarounds for this issue."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
    "assignerShortName": "juniper",
    "cveId": "CVE-2021-0209",
    "datePublished": "2021-01-15T17:35:56.274Z",
    "dateReserved": "2020-10-27T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:32:29.054Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.