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CVE-2014-4883

Estado: ModificadaMedia (4.3)—

resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Lwip Project — Lwip

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-4883",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-11-28T02:59:04.677",
  "references": [
    {
      "url": "http://git.savannah.gnu.org/cgit/lwip.git/commit/?id=9fb46e120655ac481b2af8f865d5ae56c39b831a",
      "tags": [
        "Patch"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/210620",
      "tags": [
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://git.savannah.gnu.org/cgit/lwip.git/commit/?id=9fb46e120655ac481b2af8f865d5ae56c39b831a",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/210620",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets."
    },
    {
      "lang": "es",
      "value": "resolv.c en el solucionador DNS en uIP, y dns.c en el solucionador DNS en lwIP 1.4.1 y anteriores, no utiliza valores arbitrarios para los campos de ID y los puertos de fuente de paquetes de consultas DNS, lo que facilita a atacantes man-in-the-middle realizar ataques de envenenamiento de cachés a través de paquetes de respuestas falsificadas."
    }
  ],
  "lastModified": "2026-06-17T00:10:44.350",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:lwip_project:lwip:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF209204-2C1F-4719-A910-B914C8B5B353",
              "versionEndIncluding": "1.4.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}