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CVE-2021-29604: Division by zero in TFLite's implementation of hashtable lookup

May 21, 2021 (updated November 13, 2024)

The TFLite implementation of hashtable lookup is vulnerable to a division by zero error:

const int num_rows = SizeOfDimension(value, 0);
const int row_bytes = value->bytes / num_rows;

An attacker can craft a model such that values’s first dimension would be 0.

References

  • github.com/advisories/GHSA-8rm6-75mf-7r7r
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-cpu/PYSEC-2021-532.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow-gpu/PYSEC-2021-730.yaml
  • github.com/pypa/advisory-database/tree/main/vulns/tensorflow/PYSEC-2021-241.yaml
  • github.com/tensorflow/tensorflow
  • github.com/tensorflow/tensorflow/blob/1a8e885b864c818198a5b2c0cbbeca5a1e833bc8/tensorflow/lite/kernels/hashtable_lookup.cc
  • github.com/tensorflow/tensorflow/commit/5117e0851348065ed59c991562c0ec80d9193db2
  • github.com/tensorflow/tensorflow/security/advisories/GHSA-8rm6-75mf-7r7r
  • nvd.nist.gov/vuln/detail/CVE-2021-29604

Code Behaviors & Features

Detect and mitigate CVE-2021-29604 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

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 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-gpu/CVE-2021-29604.yml

Spotted a mistake? Edit the file on GitLab.

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