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CVE-2020-27223: Uncontrolled Resource Consumption

February 26, 2021 (updated September 16, 2021)

When Jetty handles a request containing multiple Accept headers with a large number of quality (i.e., q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.

References

  • bugs.eclipse.org/bugs/show_bug.cgi?id=571128
  • nvd.nist.gov/vuln/detail/CVE-2020-27223

Code Behaviors & Features

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Affected versions

All versions starting from 9.4.6.v20170531 up to 9.4.36.v20210114, all versions starting from 10.0.0 before 10.0.1, all versions starting from 11.0.0 before 11.0.1

Fixed versions

  • 9.4.37.v20210219
  • 10.0.1
  • 11.0.1

Solution

Upgrade to versions 9.4.37.v20210219, 10.0.1, 11.0.1 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-400: Uncontrolled Resource Consumption

Source file

maven/org.eclipse.jetty/jetty-server/CVE-2020-27223.yml

Spotted a mistake? Edit the file on GitLab.

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