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CVE-2021-32476: Uncontrolled Resource Consumption

March 11, 2022 (updated December 2, 2022)

A denial-of-service risk was identified in the draft files area, due to it not respecting user file upload limits. Moodle versions 3.10 to 3.10.3, 3.9 to 3.9.6, 3.8 to 3.8.8, 3.5 to 3.5.17 and earlier unsupported versions are affected.

References

  • moodle.org/mod/forum/discuss.php?d=422310
  • nvd.nist.gov/vuln/detail/CVE-2021-32476

Code Behaviors & Features

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Affected versions

All versions before 3.5.18, all versions starting from 3.8.0 before 3.8.9, all versions starting from 3.9.0 before 3.9.7, all versions starting from 3.10.0 before 3.10.4

Fixed versions

  • 3.5.18
  • 3.8.9
  • 3.9.7
  • 3.10.4

Solution

Upgrade to versions 3.5.18, 3.8.9, 3.9.7, 3.10.4 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-770: Allocation of Resources Without Limits or Throttling

Source file

packagist/moodle/moodle/CVE-2021-32476.yml

Spotted a mistake? Edit the file on GitLab.

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