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CVE-2021-37667: TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attac…

Occurred
Aug 12, 2021
Published
Aug 12, 2021
Source
NVD CVE

Summary

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause undefined behavior via binding a reference to null pointer in `tf.raw_ops.UnicodeEncode`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/unicode_ops.cc#L533-L539) reads the first dimension of the `input_splits` tensor before validating that this tensor is not empty. We have patched the issue in GitHub commit 2e0ee46f1a47675152d3d865797a18358881d7a6. The fix will be included in TensorFlow 2.6.0. We will also cherrypick this commit on TensorFlow 2.5.1, TensorFlow 2.4.3, and TensorFlow 2.3.4, as these are also affected and still in supported range.

Tags

  • CVE
  • CVE-2021-37667
  • cvss:HIGH

Classification

Category confidence: 85%
Severity confidence: 90%

Rationale: CVE describes a software vulnerability in TensorFlow ML platform causing undefined behavior, not a direct AI safety incident.

Classifier: Qwen/Qwen3.5-35B-A3B-FP8

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