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CVE-2016-7036: python-jose failure to use a constant time comparison for HMAC keys

May 17, 2022 (updated October 16, 2024)

python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

References

  • github.com/advisories/GHSA-w799-prg3-cx77
  • github.com/mpdavis/python-jose
  • github.com/mpdavis/python-jose/commit/73007d6887a7517ac07c6e755e494baee49ef513
  • github.com/mpdavis/python-jose/pull/35/commits/89b46353b9f611e9da38de3d2fedf52331167b93
  • github.com/mpdavis/python-jose/releases/tag/1.3.2
  • github.com/pypa/advisory-database/tree/main/vulns/python-jose/PYSEC-2017-28.yaml
  • nvd.nist.gov/vuln/detail/CVE-2016-7036
  • web.archive.org/web/20210123221523/http://www.securityfocus.com/bid/95845

Code Behaviors & Features

Detect and mitigate CVE-2016-7036 with GitLab Dependency Scanning

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Affected versions

All versions before 1.3.2

Fixed versions

  • 1.3.2

Solution

Upgrade to version 1.3.2 or above.

Impact 9.8 CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-208: Observable Timing Discrepancy

Source file

pypi/python-jose/CVE-2016-7036.yml

Spotted a mistake? Edit the file on GitLab.

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