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CVE-2021-41219

CVE-2021-41219 · Undefined behavior via `nullptr` reference binding in sparse matrix multiplication

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 code for sparse matrix multiplication is vulnerable to undefined behavior via binding a reference to `nullptr`. This occurs whenever the dimensions of `a` or `b` are 0 or less. In the case on one of these is 0, an empty output tensor should be allocated (to conserve the invariant that output tensors are always allocated when the operation is successful) but nothing should be written to it (that is, we should return early from the kernel implementation). Otherwise, attempts to write to this empty tensor would result in heap OOB access. 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 7.8 · High · 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: < e6cf28c72ba2eb949ca950d834dd6d66bb01cfae
    • 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: < e6cf28c72ba2eb949ca950d834dd6d66bb01cfae
    • 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: < e6cf28c72ba2eb949ca950d834dd6d66bb01cfae
    • 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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