« Volver al listado

CVE-2024-4323

Estado: AnalizadaCrítica (9.8)—💥 PoC

A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing of trace requests and may result in denial of service conditions, information disclosure, or remote code execution.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Treasuredata — Fluent BIT

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2024-4323",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-4323",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-05-20T14:38:35.183635Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "vulnreport@tenable.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/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": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/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": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "repo": "https://github.com/fluent/fluent-bit",
          "vendor": "Fluent Bit",
          "product": "Fluent Bit",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.7",
              "versionType": "semver",
              "lessThanOrEqual": "3.0.3"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:*"
          ],
          "vendor": "treasuredata",
          "product": "fluent_bit",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.7",
              "versionType": "semver",
              "lessThanOrEqual": "3.0.3"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-05-20T12:15:08.720",
  "references": [
    {
      "url": "https://github.com/fluent/fluent-bit/commit/9311b43a258352797af40749ab31a63c32acfd04",
      "tags": [
        "Patch"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://tenable.com/security/research/tra-2024-17",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://github.com/fluent/fluent-bit/commit/9311b43a258352797af40749ab31a63c32acfd04",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://tenable.com/security/research/tra-2024-17",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.vicarius.io/vsociety/posts/linguistic-lumberjack-memory-corruption-in-fluent-bit-cve-2024-4323",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vulnreport@tenable.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing of trace requests and may result in denial of service conditions, information disclosure, or remote code execution."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de corrupción de memoria en las versiones 2.0.7 a 3.0.3 de Fluent Bit. Este problema radica en el análisis de las solicitudes de seguimiento por parte del servidor http integrado y puede dar lugar a condiciones de denegación de servicio, divulgación de información o ejecución remota de código."
    }
  ],
  "lastModified": "2026-06-17T08:01:40.353",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "991D24B7-FA94-42A6-80A8-D9E6DE71D9C3",
              "versionEndExcluding": "2.2.3",
              "versionStartIncluding": "2.0.7"
            },
            {
              "criteria": "cpe:2.3:a:treasuredata:fluent_bit:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EF85ED4D-A6E9-4117-A91B-43644AF45CA9",
              "versionEndExcluding": "3.0.4",
              "versionStartIncluding": "3.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com"
}