CVE-2021-29574

Summary

TensorFlow is an end-to-end open source platform for machine learning. The implementation of tf.raw_ops.MaxPool3DGradGrad exhibits undefined behavior by dereferencing null pointers backing attacker-supplied empty tensors. The implementation(https://github.com/tensorflow/tensorflow/blob/72fe792967e7fd25234342068806707bbc116618/tensorflow/core/kernels/pooling_ops_3d.cc#L679-L703) fails to validate that the 3 tensor inputs are not empty. If any of them is empty, then accessing the elements in the tensor results in dereferencing a null pointer. 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 Software

VendorProductVersion RangeStatus
tensorflowtensorflow< 2.1.4affected
tensorflowtensorflow>= 2.2.0, < 2.2.3affected
tensorflowtensorflow>= 2.3.0, < 2.3.3affected
tensorflowtensorflow>= 2.4.0, < 2.4.2affected

Weaknesses

  • CWE-476: CWE-476: NULL Pointer Dereference

ADP Enrichment

CVE Program Container

Additional References

References