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CVE-2021-37647

7.7 · HIGH

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

Published Aug 12, 2021CWE-476EPSS 0.16%

Overview

CVE-2021-37647 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. When a user does not supply arguments that determine a valid sparse tensor, `tf.raw_ops.SparseTensorSliceDataset` implementation can be made to dereference a null pointer. The [implementation](https://github.com/tensorflow/tensorflow/blob/8d72537c6abf5a44103b57b9c2e22c14f5f49698/tensorflow/core/kernels/data/sparse_tensor_slice_dataset_op.cc#L240-L251) has some argument validation but fails to consider the case when either `indices` or `values` are provided for an empty sparse tensor when the other is not. If `indices` is empty, then [code that performs validation](https://github.com/tensorflow/tensorflow/blob/8d72537c6abf5a44103b57b9c2e22c14f5f49698/tensorflow/core/kernels/data/sparse_tensor_slice_dataset_op.cc#L260-L261) (i.e., checking that the indices are monotonically increasing) results in a null pointer dereference. If `indices` as provided by the user is empty, then `indices` in the C++ code above is backed b

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/02cc160e29d20631de3859c6653184e3f876b9d7GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-c5x2-p679-95wcGitHubgithub.com/tensorflow/tensorflow/commit/02cc160e29d20631de3859c6653184e3f876b9d7GitHubgithub.com/tensorflow/tensorflow/security/advisories/GHSA-c5x2-p679-95wc

How CyberStrike helps

Frequently asked questions

What is CVE-2021-37647?

CVE-2021-37647 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-2021-37647?

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-2021-37647?

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-2021-37647?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-37647 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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