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OpenAdvisories
Medium · 6.6 CVE-2021-41227 BIT-tensorflow-2021-41227EUVD-2021-0449GHSA-j8c8-67vp-6mx7PYSEC-2021-419PYSEC-2021-636PYSEC-2021-834

Arbitrary memory read in `ImmutableConst`

Published Nov 5, 2021 · Updated Aug 4, 2024 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
tensorflow tensorflow >= 2.6.0, < 2.6.1, >= 2.5.0, < 2.5.2, < 2.4.4 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI tensorflow >= 2.6.0, < 2.6.1 2.6.1 GHSA-j8c8-67vp-6mx7
PyPI tensorflow >= 2.5.0, < 2.5.2 2.5.2 GHSA-j8c8-67vp-6mx7
PyPI tensorflow < 2.4.4 2.4.4 GHSA-j8c8-67vp-6mx7
PyPI tensorflow < 2.4.4 · >= 2.5.0, < 2.5.2 · >= 2.6.0, < 2.6.1 · >= 2.7.0rc0, < 2.7.0 2.4.4, 2.5.2, 2.6.1, 2.7.0 PYSEC-2021-419
PyPI tensorflow-cpu >= 2.6.0, < 2.6.1 2.6.1 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-cpu >= 2.5.0, < 2.5.2 2.5.2 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-cpu < 2.4.4 2.4.4 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-cpu < 2.4.4 · >= 2.5.0, < 2.5.2 · >= 2.6.0, < 2.6.1 · >= 2.7.0rc0, < 2.7.0 2.4.4, 2.5.2, 2.6.1, 2.7.0 PYSEC-2021-636
PyPI tensorflow-gpu >= 2.6.0, < 2.6.1 2.6.1 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-gpu >= 2.5.0, < 2.5.2 2.5.2 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-gpu < 2.4.4 2.4.4 GHSA-j8c8-67vp-6mx7
PyPI tensorflow-gpu < 2.4.4 · >= 2.5.0, < 2.5.2 · >= 2.6.0, < 2.6.1 · >= 2.7.0rc0, < 2.7.0 2.4.4, 2.5.2, 2.6.1, 2.7.0 PYSEC-2021-834

References