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CVE-2021-29601: TensorFlow is an end-to-end open source platform for machine learning. The TFLite implementation of …

Occurred
May 14, 2021
Published
May 14, 2021
Source
NVD CVE

Summary

TensorFlow is an end-to-end open source platform for machine learning. The TFLite implementation of concatenation is vulnerable to an integer overflow issue(https://github.com/tensorflow/tensorflow/blob/7b7352a724b690b11bfaae2cd54bc3907daf6285/tensorflow/lite/kernels/concatenation.cc#L70-L76). An attacker can craft a model such that the dimensions of one of the concatenation input overflow the values of `int`. TFLite uses `int` to represent tensor dimensions, whereas TF uses `int64`. Hence, valid TF models can trigger an integer overflow when converted to TFLite format. The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.

Tags

  • CVE
  • CVE-2021-29601
  • cvss:MEDIUM

Classification

Category confidence: 85%
Severity confidence: 90%

Rationale: Vulnerability in TensorFlow TFLite library affecting ML model execution, not a direct AI safety incident but a technical flaw.

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

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