Vulnerability · Published May 14, 2021 · Assigned by GitHub_M
CVE-2021-29540Heap buffer overflow in `Conv2DBackpropFilter`
Low 2.5
In plain English
A low-severity buffer overflow 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. An attacker can cause a heap buffer overflow to occur in `Conv2DBackpropFilter`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/1b0296c3b8dd9bd948f924aa8cd62f87dbb7c3da/tensorflow/core/kernels/conv_grad_filter_ops.cc#L495-L497) computes the size of the filter tensor but does not validate that it matches the number of elements in `filter_sizes`. Later, when reading/writing to this buffer, code uses the value computed here, instead of the number of elements in the tensor. 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-xgc3-m89p-vr3x |
| PyPI | tensorflow | 2.4.2 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow | 2.1.4 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-177 |
| PyPI | tensorflow | 2.2.3 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-cpu | 2.4.2 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-cpu | 2.1.4 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-cpu | 2.2.3 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-cpu | 2.3.3 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-cpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-468 |
| PyPI | tensorflow-gpu | 2.3.3 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-gpu | 2.4.2 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-gpu | 2.1.4 | GHSA-xgc3-m89p-vr3x |
| PyPI | tensorflow-gpu | 2.2.0rc0, 2.3.0rc0, 2.3.4, 2.4.3 | PYSEC-2021-666 |
| PyPI | tensorflow-gpu | 2.2.3 | GHSA-xgc3-m89p-vr3x |
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-120 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L