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  5. CVE-2021-41206

CVE-2021-41206: Incomplete validation of shapes in multiple TF ops

November 10, 2021 (updated November 13, 2024)

Several TensorFlow operations are missing validation for the shapes of the tensor arguments involved in the call. Depending on the API, this can result in undefined behavior and segfault or CHECK-fail related crashes but in some scenarios writes and reads from heap populated arrays are also possible.

We have discovered these issues internally via tooling while working on improving/testing GPU op determinism. As such, we don’t have reproducers and there will be multiple fixes for these issues.

References

  • github.com/advisories/GHSA-pgcq-h79j-2f69
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-845.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-847.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-843.yaml
  • github.com/tensorflow/tensorflow
  • github.com/tensorflow/tensorflow/commit/4d74d8a00b07441cba090a02e0dd9ed385145bf4
  • github.com/tensorflow/tensorflow/commit/4dddb2fd0b01cdd196101afbba6518658a2c9e07
  • github.com/tensorflow/tensorflow/commit/579261dcd446385831fe4f7457d802a59685121d
  • github.com/tensorflow/tensorflow/commit/68422b215e618df5ad375bcdc6d2052e9fd3080a
  • github.com/tensorflow/tensorflow/commit/da4aad5946be30e5f049920fa076e1f7ef021261
  • github.com/tensorflow/tensorflow/commit/e7f497570abb6b4ae5af4970620cd880e4c0c904
  • github.com/tensorflow/tensorflow/security/advisories/GHSA-pgcq-h79j-2f69
  • nvd.nist.gov/vuln/detail/CVE-2021-41206

Code Behaviors & Features

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Affected versions

All versions before 2.4.4, all versions starting from 2.5.0 before 2.5.2, all versions starting from 2.6.0 before 2.6.1

Fixed versions

  • 2.6.1
  • 2.5.2
  • 2.4.4

Solution

Upgrade to versions 2.4.4, 2.5.2, 2.6.1 or above.

Impact 7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-354: Improper Validation of Integrity Check Value

Source file

pypi/tensorflow/CVE-2021-41206.yml

Spotted a mistake? Edit the file on GitLab.

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