Vulnerability · Published Aug 12, 2021 · Assigned by GitHub_M
CVE-2021-37650Segfault and heap buffer overflow in `{Experimental,}DatasetToTFRecord` in TensorFlow
High 7.8
In plain English
A high-severity buffer overflow in tensorflow from tensorflow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
TensorFlow is an end-to-end open source platform for machine learning. In affected versions the implementation for `tf.raw_ops.ExperimentalDatasetToTFRecord` and `tf.raw_ops.DatasetToTFRecord` can trigger heap buffer overflow and segmentation fault. The [implementation](https://github.com/tensorflow/tensorflow/blob/f24faa153ad31a4b51578f8181d3aaab77a1ddeb/tensorflow/core/kernels/data/experimental/to_tf_record_op.cc#L93-L102) assumes that all records in the dataset are of string type. However, there is no check for that, and the example given above uses numeric types. We have patched the issue in GitHub commit e0b6e58c328059829c3eb968136f17aa72b6c876. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.4, 2.4.3 | PYSEC-2021-272 |
| PyPI | tensorflow | 2.3.4 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow | 2.4.3 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow | 2.5.1 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-cpu | 2.4.3 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-cpu | 2.3.4, 2.4.3 | PYSEC-2021-563 |
| PyPI | tensorflow-cpu | 2.3.4 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-cpu | 2.5.1 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-gpu | 2.3.4, 2.4.3 | PYSEC-2021-761 |
| PyPI | tensorflow-gpu | 2.3.4 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-gpu | 2.4.3 | GHSA-f8h4-7rgh-q2gm |
| PyPI | tensorflow-gpu | 2.5.1 | GHSA-f8h4-7rgh-q2gm |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | >= 2.5.0, < 2.5.1>= 2.4.0, < 2.4.3< 2.3.4 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H