CVE-2022-23566: Out of bounds write in Tensorflow

(updated )

TensorFlow is vulnerable to a heap OOB write in Grappler:

Status SetUnknownShape(const NodeDef* node, int output_port) {
shape_inference::ShapeHandle shape =
GetUnknownOutputShape(node, output_port);
InferenceContext* ctx = GetContext(node);
if (ctx == nullptr) {
return errors::InvalidArgument("Missing context");
}
ctx->set_output(output_port, shape);
return Status::OK();
}

The set_output function writes to an array at the specified index:

void set_output(int idx, ShapeHandle shape) { outputs_.at(idx) = shape; }

Hence, this gives a malicious user a write primitive.

References

Code Behaviors & Features

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