fkie_cve-2018-5732
Vulnerability from fkie_nvd
Published
2019-10-09 16:15
Modified
2024-11-21 04:09
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
References
security-officer@isc.orghttps://kb.isc.org/docs/aa-01565Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.isc.org/docs/aa-01565Vendor Advisory
Impacted products
Vendor Product Version
isc dhcp *
isc dhcp *
isc dhcp *
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1-esv
isc dhcp 4.1.2
isc dhcp 4.4.0


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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0"
    },
    {
      "lang": "es",
      "value": "Un fallo al comprobar apropiadamente los l\u00edmites de un b\u00fafer usado para procesar las opciones de DHCP, permite a un servidor malicioso (o a una entidad que se hace pasar por un servidor) causar un desbordamiento del b\u00fafer (y el bloqueo resultante) en dhclient mediante el env\u00edo de una respuesta que contiene una secci\u00f3n de opciones especialmente construida. Afecta a ISC DHCP versiones 4.1.0 hasta 4.1-ESV-R15, 4.2.0 hasta 4.2.8, 4.3.0 hasta 4.3.6, y 4.4.0."
    }
  ],
  "id": "CVE-2018-5732",
  "lastModified": "2024-11-21T04:09:16.440",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security-officer@isc.org",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-10-09T16:15:13.407",
  "references": [
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/docs/aa-01565"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://kb.isc.org/docs/aa-01565"
    }
  ],
  "sourceIdentifier": "security-officer@isc.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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