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CVE-2020-26271PYSEC-2020-302BIT-TENSORFLOW-2020-26271GHSA-Q263-FVXM-M5MWPYSEC-2020-257PYSEC-2020-337

Heap out of bounds access in MakeEdge in TensorFlow

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2
None on Exploit-DB, Metasploit or GitHub

Summary

In affected versions of TensorFlow under certain cases, loading a saved model can result in accessing uninitialized memory while building the computation graph. The MakeEdge function creates an edge between one output tensor of the src node (given by output_index) and the input slot of the dst node (given by input_index). This is only possible if the types of the tensors on both sides coincide, so the function begins by obtaining the corresponding DataType values and comparing these for equality. However, there is no check that the indices point to inside of the arrays they index into. Thus, this can result in accessing data out of bounds of the corresponding heap allocated arrays. In most scenarios, this can manifest as unitialized data access, but if the index points far away from the boundaries of the arrays this can be used to leak addresses from the library. This is fixed in versions 1.15.5, 2.0.4, 2.1.3, 2.2.2, 2.3.2, and 2.4.0.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • tensorflow tensorflow

    fixed in 1.15.5; From 2.0.0 · fixed in 2.0.4; From 2.1.0 · fixed in 2.1.3; From 2.2.0 · fixed in 2.2.2; From 2.3.0 · fixed in 2.3.2

  • tensorflow-cpuPyPI

    fixed in 1.15.5; From 2.0.0 · fixed in 2.0.4; From 2.1.0 · fixed in 2.1.3; From 2.2.0 · fixed in 2.2.2; From 2.3.0 · fixed in 2.3.2

  • tensorflow-gpuPyPI

    fixed in 1.15.5; From 2.0.0 · fixed in 2.0.4; From 2.1.0 · fixed in 2.1.3; From 2.2.0 · fixed in 2.2.2; From 2.3.0 · fixed in 2.3.2

  • tensorflowPyPI

    fixed in 1.15.5; From 2.0.0 · fixed in 2.0.4; From 2.1.0 · fixed in 2.1.3; From 2.2.0 · fixed in 2.2.2; From 2.3.0 · fixed in 2.3.2

  • tensorflowPyPI

    fixed in 1.15.5

  • tensorflowPyPI

    From 2.0.0 · fixed in 2.0.4

  • tensorflowPyPI

    From 2.1.0 · fixed in 2.1.3

  • tensorflowPyPI

    From 2.2.0 · fixed in 2.2.2

  • tensorflowPyPI

    From 2.3.0 · fixed in 2.3.2

  • tensorflow-cpuPyPI

    fixed in 1.15.5

  • tensorflow-cpuPyPI

    From 2.0.0 · fixed in 2.0.4

  • tensorflow-cpuPyPI

    From 2.1.0 · fixed in 2.1.3

  • tensorflow-cpuPyPI

    From 2.2.0 · fixed in 2.2.2

  • tensorflow-cpuPyPI

    From 2.3.0 · fixed in 2.3.2

  • tensorflow-gpuPyPI

    fixed in 1.15.5

  • tensorflow-gpuPyPI

    From 2.0.0 · fixed in 2.0.4

  • tensorflow-gpuPyPI

    From 2.1.0 · fixed in 2.1.3

  • tensorflow-gpuPyPI

    From 2.2.0 · fixed in 2.2.2

  • tensorflow-gpuPyPI

    From 2.3.0 · fixed in 2.3.2

References 2

GitHub · tensorflow/tensorflow