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CVE-2019-16778

Estado: ModificadaCrítica (9.8)—

In TensorFlow before 1.15, a heap buffer overflow in UnsortedSegmentSum can be produced when the Index template argument is int32. In this case data_size and num_segments fields are truncated from int64 to int32 and can produce negative numbers, resulting in accessing out of bounds heap memory. This is unlikely to be exploitable and was detected and fixed internally in TensorFlow 1.15 and 2.0.

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)

Google — Tensorflow

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2019-16778",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
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        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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    "cvssMetricV31": [
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          "version": "3.1",
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          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "LOW",
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        "exploitabilityScore": 1.2
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  "published": "2019-12-16T21:15:11.403",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-122"
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    },
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      "type": "Primary",
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      "description": [
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          "value": "CWE-681"
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  "descriptions": [
    {
      "lang": "en",
      "value": "In TensorFlow before 1.15, a heap buffer overflow in UnsortedSegmentSum can be produced when the Index template argument is int32. In this case data_size and num_segments fields are truncated from int64 to int32 and can produce negative numbers, resulting in accessing out of bounds heap memory. This is unlikely to be exploitable and was detected and fixed internally in TensorFlow 1.15 and 2.0."
    },
    {
      "lang": "es",
      "value": "En TensorFlow versiones anteriores a 1.15, un desbordamiento de búfer de la pila puede ser producido en la función UnsortedSegmentSum cuando el argumento de la plantilla Index es int32. En este caso, los campos data_size y num_segments son truncados de int64 hasta int32 y pueden producir números negativos, resultando en el acceso a la memoria de la pila fuera de los límites. Es poco probable que sea explotable y se detectó y reparó internamente en TensorFlow versiones 1.15 y 2.0."
    }
  ],
  "lastModified": "2026-06-17T02:22:47.090",
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