Undefined behavior in `SparseTensorSliceDataset`
High7.6CVE-2022-21736 · Published Feb 9, 2022 · updated Sep 10, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| tensorflow PyPI | < 2.5.3 | 2.5.3 |
| >= 2.6.0, < 2.6.3 | 2.6.3 | |
| >= 2.7.0, < 2.7.1 | 2.7.1 |
Details and references
### Impact The [implementation of `SparseTensorSliceDataset`](https://github.com/tensorflow/tensorflow/blob/5100e359aef5c8021f2e71c7b986420b85ce7b3d/tensorflow/core/kernels/data/sparse_tensor_slice_dataset_op.cc#L227-L292) has an undefined behavior: under certain condition it can be made to dereference a `nullptr` value: ```python import tensorflow as tf import numpy as np tf.raw_ops.SparseTensorSliceDataset( indices=[[]], values=[], dense_shape=[1,1]) ``` The 3 input arguments represent a sparse tensor. However, there are some preconditions that these arguments must satisfy but these are not validated in the implementation. ### Patches We have patched the issue in GitHub commit [965b97e4a9650495cda5a8c210ef6684b4b9eceb](https://github.com/tensorflow/tensorflow/commit/965b97e4a9650495cda5a8c210ef6684b4b9eceb). The fix will be included in TensorFlow 2.8.0. We will also cherrypick this commit on TensorFlow 2.7.1, TensorFlow 2.6.3, and TensorFlow 2.5.3, as these are also affected and still in supported range. ### For more information Please consult [our security guide](https://github.com/tensorflow/tensorflow/blob/master/SECURITY.md) for more information regarding the security model and how to contact us with issues and questions. ### Attribution This vulnerability has been reported by Faysal Hossain Shezan from University of Virginia.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-476
- Also known as
- BIT-tensorflow-2022-21736, CVE-2022-21736, PYSEC-2022-115, PYSEC-2022-60, PYSEC-2026-3223
- github.com/tensorflow/tensorflow/security/advisories/GHSA-pfjj-m3jj-9jc9
- nvd.nist.gov/vuln/detail/CVE-2022-21736
- github.com/tensorflow/tensorflow/commit/965b97e4a9650495cda5a8c210ef6684b4b9eceb
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2022-60.yaml
- github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2022-115.yaml
- github.com/tensorflow/tensorflow
- github.com/tensorflow/tensorflow/blob/5100e359aef5c8021f2e71c7b986420b85ce7b3d/tensorflow/core/kernels/data/sparse_tensor_slice_dataset_op.cc#L227-L292
More TensorFlow advisories
All TensorFlow| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Feb 92022 | Out of bounds read in Tensorflow CVE-2022-21726High8.1fixed in 2.5.3, 2.6.3, 2.7.1 | High8.1 | 2.5.3, 2.6.3, 2.7.1 |
| Feb 92022 | Integer overflow in Tensorflow CVE-2022-21727High7.6fixed in 2.5.3, 2.6.3, 2.7.1 | High7.6 | 2.5.3, 2.6.3, 2.7.1 |
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