Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | >= 2.3.0, < 2.3.4 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/4a91f2069f7145aab6ba2d8cfe41be8aPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/537bc7c723439b9194a358f64d871dd3PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/8933b8a21280696ab119b63263babdb5PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-4c4g-crqm-xrxwThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/4a91f2069f7145aab6ba2d8cfe41be8aPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/537bc7c723439b9194a358f64d871dd3PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/8933b8a21280696ab119b63263babdb5PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-4c4g-crqm-xrxwThird Party Advisory
FAQ
What is CVE-2021-37682?
CVE-2021-37682 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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://git...
How severe is CVE-2021-37682?
CVE-2021-37682 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37682?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.