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CVE-2021-29569PYSEC-2021-695BIT-TENSORFLOW-2021-29569GHSA-3H8M-483J-7XXMPYSEC-2021-206PYSEC-2021-497

Heap out of bounds read in `RequantizationRange`

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.1.4, 2.2.3, 2.3.3, 2.4.2
None on Exploit-DB, Metasploit or GitHub

Summary

TensorFlow is an end-to-end open source platform for machine learning. The implementation of `tf.raw_ops.MaxPoolGradWithArgmax` can cause reads outside of bounds of heap allocated data if attacker supplies specially crafted inputs. The implementation(https://github.com/tensorflow/tensorflow/blob/ac328eaa3870491ababc147822cd04e91a790643/tensorflow/core/kernels/requantization_range_op.cc#L49-L50) assumes that the `input_min` and `input_max` tensors have at least one element, as it accesses the first element in two arrays. If the tensors are empty, `.flat<T>()` is an empty object, backed by an empty array. Hence, accesing even the 0th element is a read outside the bounds. 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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • tensorflow tensorflow

    fixed in 2.1.4; From 2.2.0 · fixed in 2.2.3; From 2.3.0 · fixed in 2.3.3; From 2.4.0 · fixed in 2.4.2

  • tensorflow-gpuPyPI

    fixed in 2.1.4; From 2.2.0 · fixed in 2.2.3; From 2.3.0 · fixed in 2.3.3; From 2.4.0 · fixed in 2.4.2

  • tensorflowPyPI

    fixed in 2.1.4

  • tensorflowPyPI

    From 2.2.0 · fixed in 2.2.3

  • tensorflowPyPI

    From 2.3.0 · fixed in 2.3.3

  • tensorflowPyPI

    From 2.4.0 · fixed in 2.4.2

  • tensorflow-cpuPyPI

    fixed in 2.1.4

  • tensorflow-cpuPyPI

    From 2.2.0 · fixed in 2.2.3

  • tensorflow-cpuPyPI

    From 2.3.0 · fixed in 2.3.3

  • tensorflow-cpuPyPI

    From 2.4.0 · fixed in 2.4.2

  • tensorflow-gpuPyPI

    fixed in 2.1.4

  • tensorflow-gpuPyPI

    From 2.2.0 · fixed in 2.2.3

  • tensorflow-gpuPyPI

    From 2.3.0 · fixed in 2.3.3

  • tensorflow-gpuPyPI

    From 2.4.0 · fixed in 2.4.2

  • tensorflow-cpuPyPI

    fixed in 2.1.4; From 2.2.0 · fixed in 2.2.3; From 2.3.0 · fixed in 2.3.3; From 2.4.0 · fixed in 2.4.2

  • tensorflowPyPI

    fixed in 2.1.4; From 2.2.0 · fixed in 2.2.3; From 2.3.0 · fixed in 2.3.3; From 2.4.0 · fixed in 2.4.2

References 2

GitHub · tensorflow/tensorflow