fkie_cve-2024-50609
Vulnerability from fkie_nvd
Published
2025-02-18 18:15
Modified
2025-04-22 14:48
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and port, one can send a packet with Content-Length: 0 and it crashes the server. Improper handling of the case when Content-Length is 0 allows a user (with access to the endpoint) to perform a remote Denial of service attack. The crash happens because of a NULL pointer dereference when 0 (from the Content-Length) is passed to the function cfl_sds_len, which in turn tries to cast a NULL pointer into struct cfl_sds. This is related to process_payload_traces_proto_ng() at opentelemetry_prot.c.
References
cve@mitre.orghttps://fluentbit.io/announcements/Product
cve@mitre.orghttps://github.com/fluent/fluent-bit/releasesRelease Notes
cve@mitre.orghttps://www.ebryx.com/blogs/exploring-cve-2024-50608-and-cve-2024-50609Exploit, Third Party Advisory
Impacted products
Vendor Product Version
treasuredata fluent_bit 3.1.9


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:treasuredata:fluent_bit:3.1.9:*:*:*:*:*:*:*",
              "matchCriteriaId": "0365AE96-83F3-401B-A605-62703B78773F",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and port, one can send a packet with Content-Length: 0 and it crashes the server. Improper handling of the case when Content-Length is 0 allows a user (with access to the endpoint) to perform a remote Denial of service attack. The crash happens because of a NULL pointer dereference when 0 (from the Content-Length) is passed to the function cfl_sds_len, which in turn tries to cast a NULL pointer into struct cfl_sds. This is related to process_payload_traces_proto_ng() at opentelemetry_prot.c."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en Fluent Bit 3.1.9. Cuando el complemento de entrada OperTelemetry se ejecuta y escucha en una direcci\u00f3n IP y un puerto, uno puede enviar un paquete con contenido-longitud: 0 y bloquea el servidor. La gesti\u00f3n inadecuada del caso cuando la longitud de contenido es 0 permite que un usuario (con acceso a el endpoint) realice un ataque remoto de denegaci\u00f3n de servicio. El bloqueo ocurre debido a una deserferencia de puntero nulo cuando 0 (desde la longitud del contenido) se pasa a la funci\u00f3n CFL_SDS_LEN, que a su vez intenta lanzar un puntero nulo en Struct CFL_SDS. Esto est\u00e1 relacionado con process_payload_traces_proto_ng () en opentelemetry_prot.c."
    }
  ],
  "id": "CVE-2024-50609",
  "lastModified": "2025-04-22T14:48:17.650",
  "metrics": {
    "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-18T18:15:25.833",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://fluentbit.io/announcements/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/fluent/fluent-bit/releases"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.ebryx.com/blogs/exploring-cve-2024-50608-and-cve-2024-50609"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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