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CVE-2022-29210

Status: ModifiedMedium (5.5)—

TensorFlow is an open source platform for machine learning. In version 2.8.0, the `TensorKey` hash function used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`). It also tried to access individual tensor bytes through `tensor.data()` of size `AllocatedBytes()`. This led to ASAN failures because the `AllocatedBytes()` is an estimate of total bytes allocated by a tensor, including any pointed-to constructs (e.g. strings), and does not refer to contiguous bytes in the `.data()` buffer.

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The discoverers could not use this byte vector anyway because types such as `tstring` include pointers, whereas they needed to hash the string values themselves. This issue is patched in Tensorflow versions 2.9.0 and 2.8.1.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Google — Tensorflow

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2022-29210",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2025-04-23T14:07:00.383813Z"
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  "published": "2022-05-21T00:15:11.583",
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      "value": "TensorFlow is an open source platform for machine learning. In version 2.8.0, the `TensorKey` hash function used total estimated `AllocatedBytes()`, which (a) is an estimate per tensor, and (b) is a very poor hash function for constants (e.g. `int32_t`). It also tried to access individual tensor bytes through `tensor.data()` of size `AllocatedBytes()`. This led to ASAN failures because the `AllocatedBytes()` is an estimate of total bytes allocated by a tensor, including any pointed-to constructs (e.g. strings), and does not refer to contiguous bytes in the `.data()` buffer. The discoverers could not use this byte vector anyway because types such as `tstring` include pointers, whereas they needed to hash the string values themselves. This issue is patched in Tensorflow versions 2.9.0 and 2.8.1."
    },
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      "value": "TensorFlow es una plataforma de código abierto para el aprendizaje automático. En la versión 2.8.0, la función hash \"TensorKey\" usaba el total estimado de \"AllocatedBytes()\", que (a) es una estimación por tensor, y (b) es una función hash muy pobre para constantes (por ejemplo, \"int32_t\"). También intentó acceder a bytes individuales del tensor mediante \"tensor.data()\" de tamaño \"AllocatedBytes()\". Esto conllevaba a fallos de ASAN porque \"AllocatedBytes()\" es una estimación del total de bytes asignados por un tensor, incluyendo cualquier construcción apuntada (por ejemplo, cadenas), y no es referido a bytes contiguos en el buffer \".data()\". Los detectores no podían usar este vector de bytes de todos modos porque tipos como \"tstring\" incluyen punteros, mientras que ellos necesitaban hacer un hash de los valores de las cadenas por sí mismos. Este problema está parcheado en Tensorflow versiones 2.9.0 y 2.8.1"
    }
  ],
  "lastModified": "2026-06-17T04:39:49.910",
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