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CVE-2021-29566PYSEC-2021-203BIT-TENSORFLOW-2021-29566GHSA-PVRC-HG3F-58R6PYSEC-2021-494PYSEC-2021-692

Heap OOB access in `Dilation2DBackpropInput`

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.1.4, 2.2.3, 2.3.3, 2.4.2, 2.2.0rc0, and 3 more
None on Exploit-DB, Metasploit or GitHub

Summary

TensorFlow is an end-to-end open source platform for machine learning. An attacker can write outside the bounds of heap allocated arrays by passing invalid arguments to `tf.raw_ops.Dilation2DBackpropInput`. This is because the implementation(https://github.com/tensorflow/tensorflow/blob/afd954e65f15aea4d438d0a219136fc4a63a573d/tensorflow/core/kernels/dilation_ops.cc#L321-L322) does not validate before writing to the output array. The values for `h_out` and `w_out` are guaranteed to be in range for `out_backprop` (as they are loop indices bounded by the size of the array). However, there are no similar guarantees relating `h_in_max`/`w_in_max` and `in_backprop`. 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

  • tensorflowPyPI

    fixed in 2.2.0rc0; From 2.2.0 · fixed in 2.3.0rc0; From 2.3.0 · fixed in 2.3.4; From 2.4.0 · fixed in 2.4.3

  • tensorflow-gpuPyPI

    fixed in 2.2.0rc0; From 2.2.0 · fixed in 2.3.0rc0; From 2.3.0 · fixed in 2.3.4; From 2.4.0 · fixed in 2.4.3

  • 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 2.2.0rc0; From 2.2.0 · fixed in 2.3.0rc0; From 2.3.0 · fixed in 2.3.4; From 2.4.0 · fixed in 2.4.3

References 2

GitHub · tensorflow/tensorflow