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CVE-2020-11076: Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)

May 22, 2020 (updated October 7, 2020)

In Puma (RubyGem), an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-11076

Code Behaviors & Features

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Affected versions

All versions starting from 3.0.0 before 3.12.6, all versions starting from 4.0.0 before 4.3.5

Fixed versions

  • 3.12.6
  • 4.3.5

Solution

Upgrade to versions 3.12.6, 4.3.5 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Source file

gem/puma/CVE-2020-11076.yml

Spotted a mistake? Edit the file on GitLab.

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