Vulnerability · Published Aug 12, 2021 · Assigned by GitHub_M
CVE-2021-37666Reference binding to nullptr in `RaggedTensorToVariant` in TensorFlow
High 7.8
In plain English
A high-severity security flaw 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 7% 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 an attacker can cause undefined behavior via binding a reference to null pointer in `tf.raw_ops.RaggedTensorToVariant`. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/ragged_tensor_to_variant_op.cc#L129) has an incomplete validation of the splits values, missing the case when the argument would be empty. We have patched the issue in GitHub commit be7a4de6adfbd303ce08be4332554dff70362612. 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-2021-288 |
| PyPI | tensorflow | 2.3.4 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow | 2.4.3 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow | 2.5.1 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-cpu | 2.4.3 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-cpu | 2.3.4, 2.4.3 | PYSEC-2021-579 |
| PyPI | tensorflow-cpu | 2.3.4 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-cpu | 2.5.1 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-gpu | 2.3.4, 2.4.3 | PYSEC-2021-777 |
| PyPI | tensorflow-gpu | 2.3.4 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-gpu | 2.4.3 | GHSA-w4xf-2pqw-5mq7 |
| PyPI | tensorflow-gpu | 2.5.1 | GHSA-w4xf-2pqw-5mq7 |
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-824 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H