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CVE-2020-5215

CVE-2020-5215 · Segmentation faultin TensorFlow when converting a Python string to tf.float16

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

In TensorFlow before 1.15.2 and 2.0.1, converting a string (from Python) to a tf.float16 value results in a segmentation fault in eager mode as the format checks for this use case are only in the graph mode. This issue can lead to denial of service in inference/training where a malicious attacker can send a data point which contains a string instead of a tf.float16 value. Similar effects can be obtained by manipulating saved models and checkpoints whereby replacing a scalar tf.float16 value with a scalar string will trigger this issue due to automatic conversions. This can be easily reproduced by tf.constant("hello", tf.float16), if eager execution is enabled. This issue is patched in TensorFlow 1.15.1 and 2.0.1 with this vulnerability patched. TensorFlow 2.1.0 was released after we fixed the issue, thus it is not affected. Users are encouraged to switch to TensorFlow 1.15.1, 2.0.1 or 2.1.0.

CVSS 5.0 · Medium · EPSS 0.6% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • tensorflow

    Versions
    • < 1.15.2: Affected
    • = 2.0.0: Affected

    No fix published

  • 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
    • 1.2.0
    • 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
    Affected ranges
    • ECOSYSTEM: < 1.15.2

    Update to 1.15.2

  • tensorflow PyPI

    Versions
    • 2.0.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.0.0, < 2.0.1

    Update to 2.0.1

  • tensorflow-cpu PyPI

    Versions
    • 1.15.0
    Affected ranges
    • ECOSYSTEM: < 1.15.2

    Update to 1.15.2

  • tensorflow-cpu PyPI

    Versions
    • 2.0.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.0.0, < 2.0.1

    Update to 2.0.1

  • 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
    • 1.2.0
    • 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
    Affected ranges
    • ECOSYSTEM: < 1.15.2

    Update to 1.15.2

  • tensorflow-gpu PyPI

    Versions
    • 2.0.0
    Affected ranges
    • ECOSYSTEM: ≥ 2.0.0, < 2.0.1

    Update to 2.0.1

  • tensorflow PyPI

    Versions
    • 0.12.0
    • 0.12.0rc0
    • 0.12.0rc1
    • 0.12.1
    • 1.0.0
    • 1.0.1
    • 1.1.0
    • 1.1.0rc0
    • 1.1.0rc1
    • 1.1.0rc2
    • 1.10.0
    • 1.10.0rc0
    • 1.10.0rc1
    • 1.10.1
    • 1.11.0
    • 1.11.0rc0
    • 1.11.0rc1
    • 1.11.0rc2
    • 1.12.0
    • 1.12.0rc0
    • 1.12.0rc1
    • 1.12.0rc2
    • 1.12.2
    • 1.12.3
    • 1.13.0rc0
    • 1.13.0rc1
    • 1.13.0rc2
    • 1.13.1
    • 1.13.2
    • 1.14.0
    • 1.14.0rc0
    • 1.14.0rc1
    • 1.15.0
    • 1.15.0rc0
    • 1.15.0rc1
    • 1.15.0rc2
    • 1.15.0rc3
    • 1.2.0
    • 1.2.0rc0
    • 1.2.0rc1
    • 1.2.0rc2
    • 1.2.1
    • 1.3.0
    • 1.3.0rc0
    • 1.3.0rc1
    • 1.3.0rc2
    • 1.4.0
    • 1.4.0rc0
    • 1.4.0rc1
    • 1.4.1
    • 1.5.0
    • 1.5.0rc0
    • 1.5.0rc1
    • 1.5.1
    • 1.6.0
    • 1.6.0rc0
    • 1.6.0rc1
    • 1.7.0
    • 1.7.0rc0
    • 1.7.0rc1
    • 1.7.1
    • 1.8.0
    • 1.8.0rc0
    • 1.8.0rc1
    • 1.9.0
    • 1.9.0rc0
    • 1.9.0rc1
    • 1.9.0rc2
    • 2.0.0
    Affected ranges
    • GIT: < 5ac1b9e24ff6afc465756edf845d2e9660bd34bf
    • ECOSYSTEM: < 1.15.2 ∪ ≥ 2.0.0, < 2.0.1

    Update to 1.15.2; Update to 2.0.1

  • tensorflow-cpu PyPI

    Versions
    • 1.15.0
    Affected ranges
    • GIT: < 5ac1b9e24ff6afc465756edf845d2e9660bd34bf
    • ECOSYSTEM: < 1.15.2 ∪ ≥ 2.0.0, < 2.0.1

    Update to 1.15.2; Update to 2.0.1

  • 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
    • 1.2.0
    • 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
    Affected ranges
    • GIT: < 5ac1b9e24ff6afc465756edf845d2e9660bd34bf
    • ECOSYSTEM: < 1.15.2 ∪ ≥ 2.0.0, < 2.0.1

    Update to 1.15.2; Update to 2.0.1

Original sources

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