Vulnerability · Published Aug 12, 2021 · Assigned by GitHub_M
CVE-2021-37674Incomplete validation in `MaxPoolGrad` in TensorFlow
Medium 5.5
In plain English
A medium-severity improper input validation 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 an attacker can trigger a denial of service via a segmentation fault in `tf.raw_ops.MaxPoolGrad` caused by missing validation. The [implementation](https://github.com/tensorflow/tensorflow/blob/460e000de3a83278fb00b61a16d161b1964f15f4/tensorflow/core/kernels/maxpooling_op.cc) misses some validation for the `orig_input` and `orig_output` tensors. The fixes for CVE-2021-29579 were incomplete. We have patched the issue in GitHub commit 136b51f10903e044308cf77117c0ed9871350475. 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-2021-296 |
| PyPI | tensorflow | 2.3.4 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow | 2.4.3 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow | 2.5.1 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-cpu | 2.4.3 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-cpu | 2.3.4, 2.4.3 | PYSEC-2021-587 |
| PyPI | tensorflow-cpu | 2.3.4 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-cpu | 2.5.1 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-gpu | 2.3.4, 2.4.3 | PYSEC-2021-785 |
| PyPI | tensorflow-gpu | 2.3.4 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-gpu | 2.4.3 | GHSA-7ghq-fvr3-pj2x |
| PyPI | tensorflow-gpu | 2.5.1 | GHSA-7ghq-fvr3-pj2x |
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-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-7ghq-fvr3-pj2x x_refsource_CONFIRM
- https://github.com/tensorflow/tensorflow/commit/136b51f10903e044308cf77117c0ed9871350475 x_refsource_MISC
- https://github.com/tensorflow/tensorflow/blob/master/tensorflow/security/advisory/tfsa-2021-068.md x_refsource_MISC