Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29522Division by 0 in `Conv3DBackprop*`
Low 2.5
In plain English
A low-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 9% 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. The `tf.raw_ops.Conv3DBackprop*` operations fail to validate that the input tensors are not empty. In turn, this would result in a division by 0. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/a91bb59769f19146d5a0c20060244378e878f140/tensorflow/core/kernels/conv_grad_ops_3d.cc#L430-L450) does not check that the divisor used in computing the shard size is not zero. Thus, if attacker controls the input sizes, they can trigger a denial of service via a division by zero error. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | tensorflow | 2.3.3 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow | 2.4.2 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow | 2.1.4 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-159 |
| PyPI | tensorflow | 2.2.3 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-cpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-450 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-c968-pq7h-7fxv |
| PyPI | tensorflow-gpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-648 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-c968-pq7h-7fxv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tensorflow | tensorflow | < 2.1.4>= 2.2.0, < 2.2.3>= 2.3.0, < 2.3.3>= 2.4.0, < 2.4.2 |
Weakness: CWE-369 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L