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CVE-2021-37682

4.4 · MEDIUM

TensorFlow is an end-to-end open source platform for machine learning.

Published Aug 12, 2021CWE-908EPSS 0.18%

Overview

CVE-2021-37682 is a medium-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

TensorFlow is an end-to-end open source platform for machine learning. In affected versions all TFLite operations that use quantization can be made to use unitialized values. [For example](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/lite/kernels/depthwise_conv.cc#L198-L200). The issue stems from the fact that `quantization.params` is only valid if `quantization.type` is different that `kTfLiteNoQuantization`. However, these checks are missing in large parts of the code. We have patched the issue in GitHub commits 537bc7c723439b9194a358f64d871dd326c18887, 4a91f2069f7145aab6ba2d8cfe41be8a110c18a5 and 8933b8a21280696ab119b63263babdb54c298538. 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/tensorflow/tensorflow/commit/4a91f2069f7145aab6ba2d8cfe41be8a110c18a5GitHubgithub.com/tensorflow/tensorflow/commit/537bc7c723439b9194a358f64d871dd326c18887GitHubgithub.com/tensorflow/tensorflow/commit/8933b8a21280696ab119b63263babdb54c298538GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-4c4g-crqm-xrxwGitHubgithub.com/tensorflow/tensorflow/commit/4a91f2069f7145aab6ba2d8cfe41be8a110c18a5GitHubgithub.com/tensorflow/tensorflow/commit/537bc7c723439b9194a358f64d871dd326c18887GitHubgithub.com/tensorflow/tensorflow/commit/8933b8a21280696ab119b63263babdb54c298538GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-4c4g-crqm-xrxw

How CyberStrike helps

Frequently asked questions

What is CVE-2021-37682?

CVE-2021-37682 is a medium-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2021-37682?

This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-37682?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-37682?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-37682 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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