Impact
The Prepare step of the SpaceToDepth TFLite operator does not check for 0 before division.
const int block_size = params->block_size;
const int input_height = input->dims->data[1];
const int input_width = input->dims->data[2];
int output_height = input_height / block_size;
int output_width = input_width / block_size;
An attacker can craft a model such that params->block_size would be zero.
Patches
We have patched the issue in GitHub commit 0d45ea1ca641b21b73bcf9c00e0179cda284e7e7.
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.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by members of the Aivul Team from Qihoo 360.
Impact
The
Preparestep of theSpaceToDepthTFLite operator does not check for 0 before division.An attacker can craft a model such that
params->block_sizewould be zero.Patches
We have patched the issue in GitHub commit 0d45ea1ca641b21b73bcf9c00e0179cda284e7e7.
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.
For more information
Please consult our security guide for more information regarding the security model and how to contact us with issues and questions.
Attribution
This vulnerability has been reported by members of the Aivul Team from Qihoo 360.