CVE-2021-37668
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.
How to fix
- google tensorflow2.3.4, 2.4.3 or later
- tensorflow2.3.4, 2.4.3, 2.5.1 or later
- tensorflow-cpu2.3.4, 2.4.3, 2.5.1 or later
- tensorflow-gpu2.3.4, 2.4.3, 2.5.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| google tensorflow | 2.3.0 ≤ v < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0, 2.6.0 | 2.3.4, 2.4.3 |
| tensorflowPyPI | v < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.4 | 2.3.4, 2.4.3, 2.5.1 |
| tensorflow-cpuPyPI | v < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.4 | 2.3.4, 2.4.3, 2.5.1 |
| tensorflow-gpuPyPI | v < 2.3.4, 2.4.0 ≤ v < 2.4.3, 2.5.0 ≤ v < 2.5.1, 2.3.0 ≤ v < 2.3.4 | 2.3.4, 2.4.3, 2.5.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.