Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29579Heap buffer overflow in `MaxPoolGrad`
Low 2.5
In plain English
A low-severity memory corruption 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 12% 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 implementation of `tf.raw_ops.MaxPoolGrad` is vulnerable to a heap buffer overflow. The implementation(https://github.com/tensorflow/tensorflow/blob/ab1e644b48c82cb71493f4362b4dd38f4577a1cf/tensorflow/core/kernels/maxpooling_op.cc#L194-L203) fails to validate that indices used to access elements of input/output arrays are valid. Whereas accesses to `input_backprop_flat` are guarded by `FastBoundsCheck`, the indexing in `out_backprop_flat` can result in OOB access. 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-79fv-9865-4qcv |
| PyPI | tensorflow | 2.4.2 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow | 2.1.4 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-216 |
| PyPI | tensorflow | 2.2.3 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-cpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-507 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-79fv-9865-4qcv |
| PyPI | tensorflow-gpu | 2.1.4, 2.2.3, 2.3.3, 2.4.2 | PYSEC-2021-705 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-79fv-9865-4qcv |
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-119 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L