id: PYSEC-2021-184
details: TensorFlow is an end-to-end open source platform for machine learning. An
  attacker can cause a segfault and denial of service via accessing data outside of
  bounds in `tf.raw_ops.QuantizedBatchNormWithGlobalNormalization`. This is because
  the implementation(https://github.com/tensorflow/tensorflow/blob/55a97caa9e99c7f37a0bbbeb414dc55553d3ae7f/tensorflow/core/kernels/quantized_batch_norm_op.cc#L176-L189)
  assumes the inputs are not empty. If any of these inputs is empty, `.flat<T>()`
  is an empty buffer, so accessing the element at index 0 is accessing data outside
  of bounds. The fix will be included in TensorFlow 2.5.0. We will also cherrypick
  this commit on TensorFlow 2.4.2, TensorFlow 2.3.3, TensorFlow 2.2.3 and TensorFlow
  2.1.4, as these are also affected and still in supported range.
affected:
- package:
    name: tensorflow
    ecosystem: PyPI
    purl: pkg:pypi/tensorflow
  ranges:
  - type: GIT
    repo: https://github.com/tensorflow/tensorflow
    events:
    - introduced: "0"
    - fixed: d6ed5bcfe1dcab9e85a4d39931bd18d99018e75b
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 2.2.0rc0
    - introduced: 2.2.0
    - fixed: 2.3.0rc0
    - introduced: 2.3.0
    - fixed: 2.3.4
    - introduced: 2.4.0
    - fixed: 2.4.3
  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
  - 1.15.2
  - 1.15.3
  - 1.15.4
  - 1.15.5
  - 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
  - 2.0.0a0
  - 2.0.0b0
  - 2.0.0b1
  - 2.0.0rc0
  - 2.0.0rc1
  - 2.0.0rc2
  - 2.0.1
  - 2.0.2
  - 2.0.3
  - 2.0.4
  - 2.1.0
  - 2.1.0rc0
  - 2.1.0rc1
  - 2.1.0rc2
  - 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
  - 2.4.0
  - 2.4.1
  - 2.4.2
references:
- type: ADVISORY
  url: https://github.com/tensorflow/tensorflow/security/advisories/GHSA-4fg4-p75j-w5xj
- type: FIX
  url: https://github.com/tensorflow/tensorflow/commit/d6ed5bcfe1dcab9e85a4d39931bd18d99018e75b
aliases:
- CVE-2021-29547
- GHSA-4fg4-p75j-w5xj
modified: "2021-08-27T03:22:29.791310Z"
published: "2021-05-14T20:15:00Z"