Vulnerability-Lookup

CVE-2019-6473 (GCVE-0-2019-6473)

Vulnerability from cvelistv5 – Published: 2019-10-16 17:22 – Updated: 2024-09-16 22:30

Title

A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate

Summary

An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

An attacker who is able to deliberately exploit this vulnerability can cause the kea-dhcp4 server to stop executing, resulting in denial of service to clients. Only the DHCPv4 service is affected by this vulnerability.

Assigner

isc mitre root

References

1 reference

URL	Tags
https://kb.isc.org/docs/cve-2019-6473	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
ISC	Kea	Affected: 1.4.0 to 1.5.0 Affected: 1.6.0-beta1 Affected: 1.6.0-beta2	guessed

Date Public

2019-08-28 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T20:23:20.955Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kb.isc.org/docs/cve-2019-6473"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kea",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "1.4.0 to 1.5.0"
            },
            {
              "status": "affected",
              "version": "1.6.0-beta1"
            },
            {
              "status": "affected",
              "version": "1.6.0-beta2"
            }
          ]
        }
      ],
      "datePublic": "2019-08-28T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2."
        }
      ],
      "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": [
            {
              "description": "An attacker who is able to deliberately exploit this vulnerability can cause the kea-dhcp4 server to stop executing, resulting in denial of service to clients.  Only the DHCPv4 service is affected by this vulnerability.",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-10-16T17:22:16.000Z",
        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
        "shortName": "isc"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kb.isc.org/docs/cve-2019-6473"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to a version of Kea containing a fix, available via\n   https://www.isc.org/downloads.\n\n   -  Kea 1.4.0-P2\n   -  Kea 1.5.0-P1\n   -  Kea 1.6.0"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate",
      "x_generator": {
        "engine": "Vulnogram 0.0.8"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "DATE_PUBLIC": "2019-08-28T21:08:49.000Z",
          "ID": "CVE-2019-6473",
          "STATE": "PUBLIC",
          "TITLE": "A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Kea",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "1.4.0 to 1.5.0"
                          },
                          {
                            "version_value": "1.6.0-beta1"
                          },
                          {
                            "version_value": "1.6.0-beta2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "ISC"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.8"
        },
        "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": "An attacker who is able to deliberately exploit this vulnerability can cause the kea-dhcp4 server to stop executing, resulting in denial of service to clients.  Only the DHCPv4 service is affected by this vulnerability."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/docs/cve-2019-6473",
              "refsource": "CONFIRM",
              "url": "https://kb.isc.org/docs/cve-2019-6473"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to a version of Kea containing a fix, available via\n   https://www.isc.org/downloads.\n\n   -  Kea 1.4.0-P2\n   -  Kea 1.5.0-P1\n   -  Kea 1.6.0"
          }
        ],
        "source": {
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2019-6473",
    "datePublished": "2019-10-16T17:22:16.730Z",
    "dateReserved": "2019-01-16T00:00:00.000Z",
    "dateUpdated": "2024-09-16T22:30:41.265Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-6473",
      "date": "2026-09-15",
      "epss": "0.00803",
      "percentile": "0.54763"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ics:kea:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.4.0\", \"versionEndIncluding\": \"1.5.0\", \"matchCriteriaId\": \"42BBD24A-6295-4477-AE2C-44BFCE0E9700\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ics:kea:1.6.0:beta1:*:*:*:*:*:*\", \"matchCriteriaId\": \"E5BCF666-37D1-47D3-AB1C-C105F0619E35\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:ics:kea:1.6.0:beta2:*:*:*:*:*:*\", \"matchCriteriaId\": \"CEB9B85C-8B6E-4808-9685-ABBB9A698FE1\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.\"}, {\"lang\": \"es\", \"value\": \"Una opci\\u00f3n de nombre de host no v\\u00e1lido puede desencadenar un fallo de aserci\\u00f3n en el proceso del servidor Kea DHCPv4 (kea-dhcp4), causando que el proceso del servidor se cierre. Versiones afectadas: 1.4.0 hasta 1.5.0, 1.6.0-beta1 y 1.6.0-beta2.\"}]",
      "id": "CVE-2019-6473",
      "lastModified": "2024-11-21T04:46:31.120",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security-officer@isc.org\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:A/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 3.3, \"accessVector\": \"ADJACENT_NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 6.5, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-10-16T18:15:37.123",
      "references": "[{\"url\": \"https://kb.isc.org/docs/cve-2019-6473\", \"source\": \"security-officer@isc.org\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://kb.isc.org/docs/cve-2019-6473\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "security-officer@isc.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-617\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-6473\",\"sourceIdentifier\":\"security-officer@isc.org\",\"published\":\"2019-10-16T18:15:37.123\",\"lastModified\":\"2024-11-21T04:46:31.120\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.\"},{\"lang\":\"es\",\"value\":\"Una opci\u00f3n de nombre de host no v\u00e1lido puede desencadenar un fallo de aserci\u00f3n en el proceso del servidor Kea DHCPv4 (kea-dhcp4), causando que el proceso del servidor se cierre. Versiones afectadas: 1.4.0 hasta 1.5.0, 1.6.0-beta1 y 1.6.0-beta2.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-officer@isc.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":3.3,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.5,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-617\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ics:kea:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.4.0\",\"versionEndIncluding\":\"1.5.0\",\"matchCriteriaId\":\"42BBD24A-6295-4477-AE2C-44BFCE0E9700\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ics:kea:1.6.0:beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E5BCF666-37D1-47D3-AB1C-C105F0619E35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ics:kea:1.6.0:beta2:*:*:*:*:*:*\",\"matchCriteriaId\":\"CEB9B85C-8B6E-4808-9685-ABBB9A698FE1\"}]}]}],\"references\":[{\"url\":\"https://kb.isc.org/docs/cve-2019-6473\",\"source\":\"security-officer@isc.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://kb.isc.org/docs/cve-2019-6473\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2025-11-21T17:07:20+00:00",
      "cve": "CVE-2019-6473",
      "id": "CVE-2019-6473",
      "initial_release_date": "2019-08-28T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kea: packed containing a malformed code causing assertion failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-6473.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2025-02-17T07:56:59Z",
      "cve": "CVE-2019-6473",
      "id": "CVE-2019-6473",
      "initial_release_date": "2023-02-15T04:16:16Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-6473",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-6473.json",
      "version": "5"
    }
  }
}

FKIE_CVE-2019-6473

Vulnerability from fkie_nvd - Published: 2019-10-16 18:15 - Updated: 2026-06-17 02:39

Severity

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

Summary

References

	URL	Tags
	security-officer@isc.org	https://kb.isc.org/docs/cve-2019-6473	Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	https://kb.isc.org/docs/cve-2019-6473	Vendor Advisory

Impacted products

Vendor	Product	Version
ics	kea	*
ics	kea	1.6.0
ics	kea	1.6.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Kea",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "1.4.0 to 1.5.0"
            },
            {
              "status": "affected",
              "version": "1.6.0-beta1"
            },
            {
              "status": "affected",
              "version": "1.6.0-beta2"
            }
          ]
        }
      ],
      "source": "security-officer@isc.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ics:kea:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "42BBD24A-6295-4477-AE2C-44BFCE0E9700",
              "versionEndIncluding": "1.5.0",
              "versionStartIncluding": "1.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ics:kea:1.6.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "E5BCF666-37D1-47D3-AB1C-C105F0619E35",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ics:kea:1.6.0:beta2:*:*:*:*:*:*",
              "matchCriteriaId": "CEB9B85C-8B6E-4808-9685-ABBB9A698FE1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2."
    },
    {
      "lang": "es",
      "value": "Una opci\u00f3n de nombre de host no v\u00e1lido puede desencadenar un fallo de aserci\u00f3n en el proceso del servidor Kea DHCPv4 (kea-dhcp4), causando que el proceso del servidor se cierre. Versiones afectadas: 1.4.0 hasta 1.5.0, 1.6.0-beta1 y 1.6.0-beta2."
    }
  ],
  "id": "CVE-2019-6473",
  "lastModified": "2026-06-17T02:39:06.473",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 3.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "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": "security-officer@isc.org",
        "type": "Secondary"
      },
      {
        "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-10-16T18:15:37.123",
  "references": [
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/docs/cve-2019-6473"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/docs/cve-2019-6473"
    }
  ],
  "sourceIdentifier": "security-officer@isc.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-5GVX-V2FM-Q3FV

Vulnerability from github – Published: 2022-05-24 16:59 – Updated: 2024-04-04 02:30

Details

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2019-6473"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-10-16T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.",
  "id": "GHSA-5gvx-v2fm-q3fv",
  "modified": "2024-04-04T02:30:26Z",
  "published": "2022-05-24T16:59:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6473"
    },
    {
      "type": "WEB",
      "url": "https://kb.isc.org/docs/cve-2019-6473"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2019-6473

Vulnerability from gsd - Updated: 2023-12-13 01:23

Details

Aliases

CVE-2019-6473

Aliases

CVE-2019-6473

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2019-6473",
    "description": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.",
    "id": "GSD-2019-6473",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-6473.html",
      "https://security.archlinux.org/CVE-2019-6473"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2019-6473"
      ],
      "details": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.",
      "id": "GSD-2019-6473",
      "modified": "2023-12-13T01:23:49.924939Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-officer@isc.org",
        "DATE_PUBLIC": "2019-08-28T21:08:49.000Z",
        "ID": "CVE-2019-6473",
        "STATE": "PUBLIC",
        "TITLE": "A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Kea",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "1.4.0 to 1.5.0"
                        },
                        {
                          "version_value": "1.6.0-beta1"
                        },
                        {
                          "version_value": "1.6.0-beta2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "ISC"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.8"
      },
      "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": "An attacker who is able to deliberately exploit this vulnerability can cause the kea-dhcp4 server to stop executing, resulting in denial of service to clients.  Only the DHCPv4 service is affected by this vulnerability."
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://kb.isc.org/docs/cve-2019-6473",
            "refsource": "CONFIRM",
            "url": "https://kb.isc.org/docs/cve-2019-6473"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to a version of Kea containing a fix, available via\n   https://www.isc.org/downloads.\n\n   -  Kea 1.4.0-P2\n   -  Kea 1.5.0-P1\n   -  Kea 1.6.0"
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:ics:kea:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.5.0",
                "versionStartIncluding": "1.4.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:ics:kea:1.6.0:beta2:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:ics:kea:1.6.0:beta1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-officer@isc.org",
          "ID": "CVE-2019-6473"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-617"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/docs/cve-2019-6473",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://kb.isc.org/docs/cve-2019-6473"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 6.5,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2019-10-21T18:50Z",
      "publishedDate": "2019-10-16T18:15Z"
    }
  }
}

ubuntu-cve-2019-6473

Vulnerability from osv_ubuntu

Published

2019-08-28 00:00

Modified

2026-04-22 07:38

Summary

Details

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

6.5 (Medium)


                    
                      CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-6473	REPORT
	https://www.cve.org/CVERecord?id=CVE-2019-6473	REPORT
	https://ubuntu.com/security/notices/USN-7759-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kea-admin",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-common",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp-ddns-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp4-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp6-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "isc-kea",
        "purl": "pkg:deb/ubuntu/isc-kea@1.0.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0-1",
        "1.0.0-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kea-admin",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-common",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp-ddns-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp4-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp6-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "isc-kea",
        "purl": "pkg:deb/ubuntu/isc-kea@1.1.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0-1",
        "1.1.0-1build1",
        "1.1.0-1build2"
      ]
    }
  ],
  "aliases": [],
  "details": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.",
  "id": "UBUNTU-CVE-2019-6473",
  "modified": "2026-04-22T07:38:53Z",
  "published": "2019-08-28T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-6473"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-6473"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7759-1"
    }
  ],
  "related": [
    "USN-7759-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-6473"
  ]
}

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.

Action not permitted

CVE-2019-6473 (GCVE-0-2019-6473)

FKIE_CVE-2019-6473

GHSA-5GVX-V2FM-Q3FV

GSD-2019-6473

ubuntu-cve-2019-6473

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour