CVE-2022-29204: Missing validation causes denial of service in TensorFlow via `Conv3DBackpropFilterV2`
First published: Fri May 20 2022(Updated: )
TensorFlow is an open source platform for machine learning. Prior to versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4, the implementation of `tf.raw_ops.UnsortedSegmentJoin` does not fully validate the input arguments. This results in a `CHECK`-failure which can be used to trigger a denial of service attack. The code assumes `num_segments` is a positive scalar but there is no validation. Since this value is used to allocate the output tensor, a negative value would result in a `CHECK`-failure (assertion failure), as per TFSA-2021-198. Versions 2.9.0, 2.8.1, 2.7.2, and 2.6.4 contain a patch for this issue.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google TensorFlow | <2.6.4 | |
| Google TensorFlow | >=2.7.0<2.7.2 | |
| Google TensorFlow | =2.7.0-rc0 | |
| Google TensorFlow | =2.7.0-rc1 | |
| Google TensorFlow | =2.8.0 | |
| Google TensorFlow | =2.8.0-rc0 | |
| Google TensorFlow | =2.8.0-rc1 | |
| Google TensorFlow | =2.9.0-rc0 | |
| Google TensorFlow | =2.9.0-rc1 |
Remedy
https://github.com/tensorflow/tensorflow/blob/master/tensorflow/security/advisory/tfsa-2021-198.md
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Reference Links
- https://github.com/tensorflow/tensorflow/blob/f3b9bf4c3c0597563b289c0512e98d4ce81f886e/tensorflow/core/kernels/unsorted_segment_join_op.cc#L83-L14
- https://github.com/tensorflow/tensorflow/blob/master/tensorflow/security/advisory/tfsa-2021-198.md
- https://github.com/tensorflow/tensorflow/commit/20cb18724b0bf6c09071a3f53434c4eec53cc147
- https://github.com/tensorflow/tensorflow/commit/84563f265f28b3c36a15335c8b005d405260e943
- https://github.com/tensorflow/tensorflow/releases/tag/v2.6.4
- https://github.com/tensorflow/tensorflow/releases/tag/v2.7.2
- https://github.com/tensorflow/tensorflow/releases/tag/v2.8.1
- https://github.com/tensorflow/tensorflow/releases/tag/v2.9.0
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-hx9q-2mx4-m4pg
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