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CVE-2021-41217

CVE-2021-41217 · Null pointer exception when `Exit` node is not preceded by `Enter` op

This page contains facts from public vulnerability sources. Check the original advisory before updating.

TensorFlow is an open source platform for machine learning. In affected versions the process of building the control flow graph for a TensorFlow model is vulnerable to a null pointer exception when nodes that should be paired are not. This occurs because the code assumes that the first node in the pairing (e.g., an `Enter` node) always exists when encountering the second node (e.g., an `Exit` node). When this is not the case, `parent` is `nullptr` so dereferencing it causes a crash. 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.

CVSS 5.5 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • tensorflow

    Versions
    • >= 2.6.0, < 2.6.1: Affected
    • >= 2.5.0, < 2.5.2: Affected
    • < 2.4.4: Affected

    No fix published

  • tensorflow PyPI

    Versions
    • 2.6.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.6.0, < 2.6.1

    Update to 2.6.1

  • tensorflow PyPI

    Versions
    • 2.5.0
    • 2.5.1
    Affected ranges
    • ECOSYSTEM: ≥ 2.5.0, < 2.5.2

    Update to 2.5.2

  • tensorflow PyPI

    Versions
    • 0.12.0
    • 0.12.1
    • 1.0.0
    • 1.0.1
    • 1.1.0
    • 1.10.0
    • 1.10.1
    • 1.11.0
    • 1.12.0
    • 1.12.2
    • 1.12.3
    • 1.13.1
    • 1.13.2
    • 1.14.0
    • 1.15.0
    • 1.15.2
    • 1.15.3
    • 1.15.4
    • 1.15.5
    • 1.2.0
    • 1.2.1
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.5.0
    • 1.5.1
    • 1.6.0
    • 1.7.0
    • 1.7.1
    • 1.8.0
    • 1.9.0
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.4.3
    Affected ranges
    • ECOSYSTEM: < 2.4.4

    Update to 2.4.4

  • tensorflow-cpu PyPI

    Versions
    • 2.6.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.6.0, < 2.6.1

    Update to 2.6.1

  • tensorflow-cpu PyPI

    Versions
    • 2.5.0
    • 2.5.1
    Affected ranges
    • ECOSYSTEM: ≥ 2.5.0, < 2.5.2

    Update to 2.5.2

  • tensorflow-cpu PyPI

    Versions
    • 1.15.0
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.4.3
    Affected ranges
    • ECOSYSTEM: < 2.4.4

    Update to 2.4.4

  • tensorflow-gpu PyPI

    Versions
    • 2.6.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.6.0, < 2.6.1

    Update to 2.6.1

  • tensorflow-gpu PyPI

    Versions
    • 2.5.0
    • 2.5.1
    Affected ranges
    • ECOSYSTEM: ≥ 2.5.0, < 2.5.2

    Update to 2.5.2

  • tensorflow-gpu PyPI

    Versions
    • 0.12.0
    • 0.12.1
    • 1.0.0
    • 1.0.1
    • 1.1.0
    • 1.10.0
    • 1.10.1
    • 1.11.0
    • 1.12.0
    • 1.12.2
    • 1.12.3
    • 1.13.1
    • 1.13.2
    • 1.14.0
    • 1.15.0
    • 1.15.2
    • 1.15.3
    • 1.15.4
    • 1.15.5
    • 1.2.0
    • 1.2.1
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.5.0
    • 1.5.1
    • 1.6.0
    • 1.7.0
    • 1.7.1
    • 1.8.0
    • 1.9.0
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.4.3
    Affected ranges
    • ECOSYSTEM: < 2.4.4

    Update to 2.4.4

  • tensorflow PyPI

    Versions
    • 0.12.0
    • 0.12.1
    • 1.0.0
    • 1.0.1
    • 1.1.0
    • 1.10.0
    • 1.10.1
    • 1.11.0
    • 1.12.0
    • 1.12.2
    • 1.12.3
    • 1.13.1
    • 1.13.2
    • 1.14.0
    • 1.15.0
    • 1.15.2
    • 1.15.3
    • 1.15.4
    • 1.15.5
    • 1.2.0
    • 1.2.1
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.5.0
    • 1.5.1
    • 1.6.0
    • 1.7.0
    • 1.7.1
    • 1.8.0
    • 1.9.0
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.0rc0
    • 2.2.0rc1
    • 2.2.0rc2
    • 2.2.0rc3
    • 2.2.0rc4
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.0rc0
    • 2.3.0rc1
    • 2.3.0rc2
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.0rc0
    • 2.4.0rc1
    • 2.4.0rc2
    • 2.4.0rc3
    • 2.4.0rc4
    • 2.4.1
    • 2.4.2
    • 2.4.3
    • 2.5.0
    • 2.5.1
    • 2.6.0
    • 2.7.0rc0
    • 2.7.0rc1
    Affected ranges
    • GIT: < 05cbebd3c6bb8f517a158b0155debb8df79017ff
    • ECOSYSTEM: < 2.4.4 ∪ ≥ 2.5.0, < 2.5.2 ∪ ≥ 2.6.0, < 2.6.1 ∪ ≥ 2.7.0rc0, < 2.7.0

    Update to 2.4.4; Update to 2.5.2; Update to 2.6.1; Update to 2.7.0

  • tensorflow-cpu PyPI

    Versions
    • 1.15.0
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.4.3
    • 2.5.0
    • 2.5.1
    • 2.6.0
    • 2.7.0rc0
    • 2.7.0rc1
    Affected ranges
    • GIT: < 05cbebd3c6bb8f517a158b0155debb8df79017ff
    • ECOSYSTEM: < 2.4.4 ∪ ≥ 2.5.0, < 2.5.2 ∪ ≥ 2.6.0, < 2.6.1 ∪ ≥ 2.7.0rc0, < 2.7.0

    Update to 2.4.4; Update to 2.5.2; Update to 2.6.1; Update to 2.7.0

  • tensorflow-gpu PyPI

    Versions
    • 0.12.0
    • 0.12.1
    • 1.0.0
    • 1.0.1
    • 1.1.0
    • 1.10.0
    • 1.10.1
    • 1.11.0
    • 1.12.0
    • 1.12.2
    • 1.12.3
    • 1.13.1
    • 1.13.2
    • 1.14.0
    • 1.15.0
    • 1.15.2
    • 1.15.3
    • 1.15.4
    • 1.15.5
    • 1.2.0
    • 1.2.1
    • 1.3.0
    • 1.4.0
    • 1.4.1
    • 1.5.0
    • 1.5.1
    • 1.6.0
    • 1.7.0
    • 1.7.1
    • 1.8.0
    • 1.9.0
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.0.3
    • 2.0.4
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.1.3
    • 2.1.4
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.2.3
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 2.4.3
    • 2.5.0
    • 2.5.1
    • 2.6.0
    • 2.7.0rc0
    • 2.7.0rc1
    Affected ranges
    • GIT: < 05cbebd3c6bb8f517a158b0155debb8df79017ff
    • ECOSYSTEM: < 2.4.4 ∪ ≥ 2.5.0, < 2.5.2 ∪ ≥ 2.6.0, < 2.6.1 ∪ ≥ 2.7.0rc0, < 2.7.0

    Update to 2.4.4; Update to 2.5.2; Update to 2.6.1; Update to 2.7.0

Original sources

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