fkie_cve-2018-5732
Vulnerability from fkie_nvd
Published
2019-10-09 16:15
Modified
2024-11-21 04:09
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
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 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0",
      },
      {
         lang: "es",
         value: "Un fallo al comprobar apropiadamente los límites de un búfer 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 búfer (y el bloqueo resultante) en dhclient mediante el envío de una respuesta que contiene una sección 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,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV30: [
         {
            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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Sightings

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Nomenclature

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