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Low severityNVD Advisory· Published May 14, 2021· Updated Aug 3, 2024

Division by 0 in `QuantizedMul`

CVE-2021-29528

Description

TensorFlow is an end-to-end open source platform for machine learning. An attacker can trigger a division by 0 in tf.raw_ops.QuantizedMul. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/55900e961ed4a23b438392024912154a2c2f5e85/tensorflow/core/kernels/quantized_mul_op.cc#L188-L198) does a division by a quantity that is controlled by the caller. 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

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
tensorflowPyPI
< 2.1.42.1.4
tensorflowPyPI
>= 2.2.0, < 2.2.32.2.3
tensorflowPyPI
>= 2.3.0, < 2.3.32.3.3
tensorflowPyPI
>= 2.4.0, < 2.4.22.4.2
tensorflow-cpuPyPI
< 2.1.42.1.4
tensorflow-cpuPyPI
>= 2.2.0, < 2.2.32.2.3
tensorflow-cpuPyPI
>= 2.3.0, < 2.3.32.3.3
tensorflow-cpuPyPI
>= 2.4.0, < 2.4.22.4.2
tensorflow-gpuPyPI
< 2.1.42.1.4
tensorflow-gpuPyPI
>= 2.2.0, < 2.2.32.2.3
tensorflow-gpuPyPI
>= 2.3.0, < 2.3.32.3.3
tensorflow-gpuPyPI
>= 2.4.0, < 2.4.22.4.2

Affected products

1

Patches

1
a1b11d2fdd1e

Fix one division by zero

https://github.com/tensorflow/tensorflowMihai MaruseacApr 20, 2021via ghsa
commit
1 file changed · +5 −0
  • tensorflow/core/kernels/quantized_mul_op.cc+5 −0 modified
    @@ -347,6 +347,11 @@ class QuantizedMulOp : public OpKernel {
         tensor_num_elements = x.NumElements();
         tensor_offset = offset_x;
       }
+      if (vector_num_elements == 0) {
+        context->SetStatus(
+            errors::InvalidArgument("vector must have at least 1 element"));
+        return;
+      }
       VectorTensorMultiply<T, Toutput>(
           vector_data, vector_offset, vector_num_elements, tensor_data,
           tensor_offset, tensor_num_elements, z_data);

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

7

News mentions

0

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