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CVE-2023-3040

Estado: ModificadaAlta (7.5)—

A debug function in the lua-resty-json package, up to commit id 3ef9492bd3a44d9e51301d6adc3cd1789c8f534a (merged in PR #14) contained an out of bounds access bug that could have allowed an attacker to launch a DoS if the function was used to parse untrusted input data. It is important to note that because this debug function was only used in tests and demos, it was not exploitable in a normal environment.

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)

Cloudflare — Lua-resty-json

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2023-3040",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-3040",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-01-02T19:20:25.305557Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@cloudflare.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cna@cloudflare.com",
      "affectedData": [
        {
          "vendor": "Cloudflare",
          "product": "lua-resty-json",
          "versions": [
            {
              "status": "affected",
              "changes": [
                {
                  "at": "14",
                  "status": "unaffected"
                }
              ],
              "version": "1",
              "lessThan": "14",
              "versionType": "git"
            }
          ],
          "platforms": [
            "Windows",
            "Linux",
            "MacOS",
            "x86",
            "64 bit",
            "32 bit"
          ],
          "packageName": "lua-resty-json",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2023-06-14T12:15:09.730",
  "references": [
    {
      "url": "https://github.com/cloudflare/lua-resty-json/pull/14",
      "tags": [
        "Patch"
      ],
      "source": "cna@cloudflare.com"
    },
    {
      "url": "https://github.com/cloudflare/lua-resty-json/security/advisories/GHSA-h8rp-9622-83pg",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@cloudflare.com"
    },
    {
      "url": "https://github.com/cloudflare/lua-resty-json/pull/14",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/cloudflare/lua-resty-json/security/advisories/GHSA-h8rp-9622-83pg",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@cloudflare.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A debug function in the lua-resty-json package, up to commit id 3ef9492bd3a44d9e51301d6adc3cd1789c8f534a (merged in PR #14) contained an out of bounds access bug that could have allowed an attacker to launch a DoS if the function was used to parse untrusted input data. It is important to note that because this debug function was only used in tests and demos, it was not exploitable in a normal environment.\n"
    }
  ],
  "lastModified": "2026-06-17T06:13:14.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cloudflare:lua-resty-json:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1AEFCAA-2DCC-4044-A22F-A8B8AC78C595",
              "versionEndExcluding": "2023-05-05"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@cloudflare.com"
}