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CVE-2023-45235

Estado: ModificadaAlta (8.8)—

EDK2's Network Package is susceptible to a buffer overflow vulnerability when

handling Server ID option

from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

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)

Tianocore — Edk2

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-45235",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-45235",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-01-20T05:00:24.446605Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "infosec@edk2.groups.io",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.3,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.5,
        "exploitabilityScore": 2.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "infosec@edk2.groups.io",
      "affectedData": [
        {
          "vendor": "TianoCore",
          "product": "edk2",
          "versions": [
            {
              "status": "affected",
              "version": "edk2-stable202308"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-01-16T16:15:12.643",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "infosec@edk2.groups.io"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2024/01/16/2",
      "tags": [
        "Mailing List"
      ],
      "source": "infosec@edk2.groups.io"
    },
    {
      "url": "https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "infosec@edk2.groups.io"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/",
      "source": "infosec@edk2.groups.io"
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    {
      "url": "https://security.netapp.com/advisory/ntap-20240307-0011/",
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    },
    {
      "url": "http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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    },
    {
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      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20240307-0011/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/132380",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "infosec@edk2.groups.io",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "EDK2's Network Package is susceptible to a buffer overflow vulnerability when\n\n\n\n\n\nhandling Server ID option \n\n\n\n from a DHCPv6 proxy Advertise message. This\n vulnerability can be exploited by an attacker to gain unauthorized \naccess and potentially lead to a loss of Confidentiality, Integrity and/or Availability."
    },
    {
      "lang": "es",
      "value": "EDK2's Network Package es susceptible a una vulnerabilidad de desbordamiento de búfer cuando maneja la opción de ID del servidor desde un mensaje de publicidad del proxy DHCPv6. Un atacante puede aprovechar esta vulnerabilidad para obtener acceso no autorizado y potencialmente provocar una pérdida de confidencialidad, integridad y/o disponibilidad."
    }
  ],
  "lastModified": "2026-06-17T06:28:30.310",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3CEB3105-57CC-4096-81D3-D58005813C4B",
              "versionEndIncluding": "202311"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "infosec@edk2.groups.io"
}