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CVE-2021-41218: Integer division by 0 in `tf.raw_ops.AllToAll`

November 10, 2021 (updated November 7, 2024)

The shape inference code for AllToAll can be made to execute a division by 0:

import tensorflow as tf

@tf.function
def func():
return tf.raw_ops.AllToAll(
input=[0.0, 0.1652, 0.6543],
group_assignment=[1, -1],
concat_dimension=0,
split_dimension=0,
split_count=0)

func()

This occurs whenever the split_count argument is 0:

TF_RETURN_IF_ERROR(c->GetAttr("split_count", &split_count));
...
for (int32_t i = 0; i < rank; ++i) {
...
dims[i] = c->MakeDim(c->Value(dims[i]) / split_count);
...
}

References

  • github.com/advisories/GHSA-9crf-c6qr-r273
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-627.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-825.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-410.yaml
  • github.com/tensorflow/tensorflow
  • github.com/tensorflow/tensorflow/commit/a8ad3e5e79c75f36edb81e0ba3f3c0c5442aeddc
  • github.com/tensorflow/tensorflow/security/advisories/GHSA-9crf-c6qr-r273
  • nvd.nist.gov/vuln/detail/CVE-2021-41218

Code Behaviors & Features

Detect and mitigate CVE-2021-41218 with GitLab Dependency Scanning

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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 5.5 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-369: Divide By Zero

Source file

pypi/tensorflow/CVE-2021-41218.yml

Spotted a mistake? Edit the file on GitLab.

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