QID 982493

QID 982493: Python (pip) Security Update for tensorflow-gpu (GHSA-fxqh-cfjm-fp93)

Security update has been released for tensorflow,tensorflow-cpu,tensorflow-gpu to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

An attacker can cause a denial of service via a FPE runtime error in `tf.raw_ops.Reverse`:

```python
import tensorflow as tf

tensor_input = tf.constant([], shape=[0, 1, 1], dtype=tf.int32)
dims = tf.constant([False, True, False], shape=[3], dtype=tf.bool)

tf.raw_ops.Reverse(tensor=tensor_input, dims=dims)
```

This is because the [implementation](https://github.com/tensorflow/tensorflow/blob/36229ea9e9451dac14a8b1f4711c435a1d84a594/tensorflow/core/kernels/reverse_op.cc#L75-L76) performs a division based on the first dimension of the tensor argument:

```cc
const int64 N = input.dim_size(0);
const int64 cost_per_unit = input.NumElements() / N;
```

Since this is controlled by the user, an attacker can trigger a denial of service.

  • CVSS V3 rated as Medium - 5.5 severity.
  • CVSS V2 rated as Low - 2.1 severity.
  • Solution
    We have patched the issue in GitHub commit [4071d8e2f6c45c1955a811fee757ca2adbe462c1](https://github.com/tensorflow/tensorflow/commit/4071d8e2f6c45c1955a811fee757ca2adbe462c1).

    The fix will be included in TensorFlow 2.5.0. We will also cherrypick this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow 2.1.4, as these are also affected and still in supported range.
    Vendor References

    CVEs related to QID 982493

    Software Advisories
    Advisory ID Software Component Link
    GHSA-fxqh-cfjm-fp93 tensorflow URL Logo github.com/advisories/GHSA-fxqh-cfjm-fp93
    GHSA-fxqh-cfjm-fp93 tensorflow-cpu URL Logo github.com/advisories/GHSA-fxqh-cfjm-fp93
    GHSA-fxqh-cfjm-fp93 tensorflow-gpu URL Logo github.com/advisories/GHSA-fxqh-cfjm-fp93

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