Vulnerability Description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause denial of service in applications serving models using `tf.raw_ops.UnravelIndex` by triggering a division by 0. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/unravel_index_op.cc#L36) does not check that the tensor subsumed by `dims` is not empty. Hence, if one element of `dims` is 0, the implementation does a division by 0. We have patched the issue in GitHub commit a776040a5e7ebf76eeb7eb923bf1ae417dd4d233. 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/a776040a5e7ebf76eeb7eb923bf1ae41PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2wmv-37vq-52g5Third Party Advisory
- https://github.com/tensorflow/tensorflow/commit/a776040a5e7ebf76eeb7eb923bf1ae41PatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-2wmv-37vq-52g5Third Party Advisory
FAQ
What is CVE-2021-37668?
CVE-2021-37668 is a vulnerability with a CVSS score of 5.5 (MEDIUM). TensorFlow is an end-to-end open source platform for machine learning. In affected versions an attacker can cause denial of service in applications serving models using `tf.raw_ops.UnravelIndex` by tr...
How severe is CVE-2021-37668?
CVE-2021-37668 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37668?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.