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  5. CVE-2021-20185

CVE-2021-20185: Uncontrolled Resource Consumption

January 28, 2021 (updated October 21, 2022)

It was found in Moodle that messaging does not impose a character limit when sending messages, which could result in client-side (browser) denial of service for users receiving very large messages.

References

  • moodle.org/mod/forum/discuss.php?d=417168
  • nvd.nist.gov/vuln/detail/CVE-2021-20185

Code Behaviors & Features

Detect and mitigate CVE-2021-20185 with GitLab Dependency Scanning

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Affected versions

All versions starting from 3.5.0 before 3.5.16, all versions starting from 3.8.0 before 3.8.7, all versions starting from 3.9.0 before 3.9.4, version 3.10.0

Fixed versions

  • 3.5.16
  • 3.8.7
  • 3.9.4
  • 3.10.1

Solution

Upgrade to versions 3.5.16, 3.8.7, 3.9.4, 3.10.1 or above.

Impact 5.3 MEDIUM

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

Learn more about CVSS

Weakness

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

Source file

packagist/moodle/moodle/CVE-2021-20185.yml

Spotted a mistake? Edit the file on GitLab.

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