CVE-2022-21727

High

Description

Tensorflow is an Open Source Machine Learning Framework. The implementation of shape inference for `Dequantize` is vulnerable to an integer overflow weakness. The `axis` argument can be `-1` (the default value for the optional argument) or any other positive value at most the number of dimensions of the input. Unfortunately, the upper bound is not checked, and, since the code computes `axis + 1`, an attacker can trigger an integer overflow. The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range.

SeverityHigh
CVSS7.6
Exploit probability—
ProductGoogle Tensorflow
PublishedFeb 3, 2022
First seenFeb 3, 2022

How to fix

Update
  • tensorflow2.5.3, 2.6.3, 2.7.1 or later
  • tensorflow-cpu2.5.3, 2.6.3, 2.7.1 or later
  • tensorflow-gpu2.5.3, 2.6.3, 2.7.1 or later

Affected products

ProductAffected versionsFixed in
google tensorflowv ≤ 2.5.2, 2.6.0 ≤ v ≤ 2.6.2, 2.7.0—
tensorflowPyPIv < 2.5.3, 2.6.0 ≤ v < 2.6.3, 2.7.0 ≤ v < 2.7.12.5.3, 2.6.3, 2.7.1
tensorflow-cpuPyPIv < 2.5.3, 2.6.0 ≤ v < 2.6.3, 2.7.0 ≤ v < 2.7.12.5.3, 2.6.3, 2.7.1
tensorflow-gpuPyPIv < 2.5.3, 2.6.0 ≤ v < 2.6.3, 2.7.0 ≤ v < 2.7.12.5.3, 2.6.3, 2.7.1

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