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CVE-2021-41227PYSEC-2021-419BIT-TENSORFLOW-2021-41227GHSA-J8C8-67VP-6MX7PYSEC-2021-636PYSEC-2021-834

Arbitrary memory read in `ImmutableConst`

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.6.1, 2.5.2, 2.4.4, 2.7.0
None on Exploit-DB, Metasploit or GitHub

Summary

TensorFlow is an open source platform for machine learning. In affected versions the `ImmutableConst` operation in TensorFlow can be tricked into reading arbitrary memory contents. This is because the `tstring` TensorFlow string class has a special case for memory mapped strings but the operation itself does not offer any support for this datatype. The fix will be included in TensorFlow 2.7.0. We will also cherrypick this commit on TensorFlow 2.6.1, TensorFlow 2.5.2, and TensorFlow 2.4.4, as these are also affected and still in supported range.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • tensorflow tensorflow

    From 2.6.0 · fixed in 2.6.1; From 2.5.0 · fixed in 2.5.2; fixed in 2.4.4

  • tensorflowPyPI

    fixed in 2.4.4; From 2.5.0 · fixed in 2.5.2; From 2.6.0 · fixed in 2.6.1; From 2.7.0rc0 · fixed in 2.7.0

  • tensorflowPyPI

    From 2.6.0 · fixed in 2.6.1

  • tensorflowPyPI

    From 2.5.0 · fixed in 2.5.2

  • tensorflowPyPI

    fixed in 2.4.4

  • tensorflow-cpuPyPI

    From 2.6.0 · fixed in 2.6.1

  • tensorflow-cpuPyPI

    From 2.5.0 · fixed in 2.5.2

  • tensorflow-cpuPyPI

    fixed in 2.4.4

  • tensorflow-gpuPyPI

    From 2.6.0 · fixed in 2.6.1

  • tensorflow-gpuPyPI

    From 2.5.0 · fixed in 2.5.2

  • tensorflow-gpuPyPI

    fixed in 2.4.4

  • tensorflow-cpuPyPI

    fixed in 2.4.4; From 2.5.0 · fixed in 2.5.2; From 2.6.0 · fixed in 2.6.1; From 2.7.0rc0 · fixed in 2.7.0

  • tensorflow-gpuPyPI

    fixed in 2.4.4; From 2.5.0 · fixed in 2.5.2; From 2.6.0 · fixed in 2.6.1; From 2.7.0rc0 · fixed in 2.7.0

References 3

GitHub · tensorflow/tensorflow