CVE-2021-37662

High

Description

TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can generate undefined behavior via a reference binding to nullptr in `BoostedTreesCalculateBestGainsPerFeature` and similar attack can occur in `BoostedTreesCalculateBestFeatureSplitV2`. The [implementation](https://github.com/tensorflow/tensorflow/blob/84d053187cb80d975ef2b9684d4b61981bca0c41/tensorflow/core/kernels/boosted_trees/stats_ops.cc) does not validate the input values. We have patched the issue in GitHub commit 9c87c32c710d0b5b53dc6fd3bfde4046e1f7a5ad and in commit 429f009d2b2c09028647dd4bb7b3f6f414bbaad7. 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.

SeverityHigh
CVSS7.1
Exploit probability—
ProductGoogle Tensorflow
PublishedAug 12, 2021
First seenAug 12, 2021
Weakness typeCWE-824CWE-824

How to fix

Update
  • google tensorflow2.3.4, 2.4.3 or later
  • tensorflow2.3.4, 2.4.3, 2.5.1 or later
  • tensorflow-cpu2.3.4, 2.4.3, 2.5.1 or later
  • tensorflow-gpu2.3.4, 2.4.3, 2.5.1 or later

Affected products

ProductAffected versionsFixed in
google tensorflow2.3.0 ≤ v < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0, 2.6.02.3.4, 2.4.3
tensorflowPyPIv < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.42.3.4, 2.4.3, 2.5.1
tensorflow-cpuPyPIv < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.42.3.4, 2.4.3, 2.5.1
tensorflow-gpuPyPIv < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.42.3.4, 2.4.3, 2.5.1

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CVE-2021-37662 · Google Tensorflow · Dark Radar