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CVE-2021-37638

7.7 · HIGH

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

Published Aug 12, 2021CWE-476EPSS 0.17%

Overview

CVE-2021-37638 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

TensorFlow is an end-to-end open source platform for machine learning. Sending invalid argument for `row_partition_types` of `tf.raw_ops.RaggedTensorToTensor` API results in a null pointer dereference and undefined behavior. The [implementation](https://github.com/tensorflow/tensorflow/blob/47a06f40411a69c99f381495f490536972152ac0/tensorflow/core/kernels/ragged_tensor_to_tensor_op.cc#L328) accesses the first element of a user supplied list of values without validating that the provided list is not empty. We have patched the issue in GitHub commit 301ae88b331d37a2a16159b65b255f4f9eb39314. 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/301ae88b331d37a2a16159b65b255f4f9eb39314GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5pGitHubgithub.com/tensorflow/tensorflow/commit/301ae88b331d37a2a16159b65b255f4f9eb39314GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-hwr7-8gxx-fj5p

How CyberStrike helps

Frequently asked questions

What is CVE-2021-37638?

CVE-2021-37638 is a high-severity vulnerability. It was published on August 12, 2021 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2021-37638?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-37638?

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-2021-37638?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-37638 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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