Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tensorflow | < 2.1.4 |
Related Weaknesses (CWE)
References
- https://github.com/tensorflow/tensorflow/commit/c570e2ecfc822941335ad48f6e10df4ePatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xgc3-m89p-vr3xExploitThird Party Advisory
- https://github.com/tensorflow/tensorflow/commit/c570e2ecfc822941335ad48f6e10df4ePatchThird Party Advisory
- https://github.com/tensorflow/tensorflow/security/advisories/GHSA-xgc3-m89p-vr3xExploitThird Party Advisory
FAQ
What is CVE-2021-29540?
CVE-2021-29540 is a vulnerability with a CVSS score of 2.5 (LOW). 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://githu...
How severe is CVE-2021-29540?
CVE-2021-29540 has been rated LOW with a CVSS base score of 2.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-29540?
Check the references section above for vendor advisories and patch information. Affected products include: Google Tensorflow.