Vulnerability Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions due to incomplete validation in MKL implementation of requantization, an attacker can trigger undefined behavior via binding a reference to a null pointer or can access data outside the bounds of heap allocated arrays. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/mkl/mkl_requantization_range_per_channel_op.cc) does not validate the dimensions of the `input` tensor. A similar issue occurs in `MklRequantizePerChannelOp`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/mkl/mkl_requantize_per_channel_op.cc) does not perform full validation for all the input arguments. We have patched the issue in GitHub commit 9e62869465573cb2d9b5053f1fa02a81fce21d69 and in the Github commit 203214568f5bc237603dbab6e1fd389f1572f5c9. 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
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | >= 2.3.0, < 2.3.4 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/203214568f5bc237603dbab6e1fd389fPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/9e62869465573cb2d9b5053f1fa02a81PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-v82p-hv3v-p6qpThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/203214568f5bc237603dbab6e1fd389fPatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/9e62869465573cb2d9b5053f1fa02a81PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-v82p-hv3v-p6qpThird Party Advisory
FAQ
What is CVE-2021-37665?
CVE-2021-37665 is a vulnerability with a CVSS score of 7.8 (HIGH). TensorFlow is an end-to-end open source platform for machine learning. In affected versions due to incomplete validation in MKL implementation of requantization, an attacker can trigger undefined beha...
How severe is CVE-2021-37665?
CVE-2021-37665 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37665?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.