Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29587Division by zero in TFLite's implementation of `SpaceToDepth`
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 10% 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 `Prepare` step of the `SpaceToDepth` TFLite operator does not check for 0 before division(https://github.com/tensorflow/tensorflow/blob/5f7975d09eac0f10ed8a17dbb6f5964977725adc/tensorflow/lite/kernels/space_to_depth.cc#L63-L67). An attacker can craft a model such that `params->block_size` would be zero. 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-j7rm-8ww4-xx2g |
| PyPI | tensorflow | 2.4.2 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow | 2.1.4 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-224 |
| PyPI | tensorflow | 2.2.3 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-cpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-515 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-j7rm-8ww4-xx2g |
| PyPI | tensorflow-gpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-713 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-j7rm-8ww4-xx2g |
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