Description
Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
- Attack Vector
- network
- Complexity
- high
- Privileges
- none
- User Action
- required
- Scope
- changed
- Confidentiality
- high
- Integrity
- high
- Availability
- none
- Weaknesses
- CWE-200CWE-404
Metadata
- Primary Vendor
- PUMA
- Published
- 2/11/2022
- Last Modified
- 11/21/2024
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
puma : pumapuma : pumarubyonrails : railsrubyonrails : railsrubyonrails : railsrubyonrails : railsdebian : debian_linuxdebian : debian_linuxdebian : debian_linuxfedoraproject : fedorafedoraproject : fedorafedoraproject : fedora
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