CVE-2021-29546

Division by 0 in `QuantizedBiasAdd`

State: Published
Severity: 2.5 Low
Published: May 14, 2021
Updated: Aug 3, 2024
Reserved: Mar 30, 2021

Description

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger an integer division by zero undefined behavior in `tf.raw_ops.QuantizedBiasAdd`. This is because the implementation of the Eigen kernel(https://github.com/tensorflow/tensorflow/blob/61bca8bd5ba8a68b2d97435ddfafcdf2b85672cd/tensorflow/core/kernels/quantization_utils.h#L812-L849) does a division by the number of elements of the smaller input (based on shape) without checking that this is not zero. 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.

Scores

CVSS	Score	Vector	Source
3.1	2.5 Low	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L	GitHub_M

Weaknesses

CWE-369 Divide By Zero

Affected Products

Product	Versions
tensorflowtensorflow	< 2.1.4Affected >= 2.2.0, < 2.2.3Affected >= 2.3.0, < 2.3.3Affected >= 2.4.0, < 2.4.2Affected

References

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