Closed mend-bolt-for-github[bot] closed 2 years ago
:heavy_check_mark: This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.
CVE-2021-41136 - Low Severity Vulnerability
Vulnerable Library - puma-4.3.1.gem
Puma is a simple, fast, threaded, and highly concurrent HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly concurrent Ruby implementations such as Rubinius and JRuby as well as as providing process worker support to support CRuby well.
Library home page: https://rubygems.org/gems/puma-4.3.1.gem
Dependency Hierarchy: - :x: **puma-4.3.1.gem** (Vulnerable Library)
Found in HEAD commit: b604637cd15b3c4cdc89d77ff0375e14c767a9ce
Vulnerability Details
Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with a proxy which forwards HTTP header values which contain the LF character could allow HTTP request smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two requests, and when processing the second request, send back a response that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another request for a different client, the second response from the first client will be sent to the second client. This vulnerability was patched in Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`.
Publish Date: 2021-10-12
URL: CVE-2021-41136
CVSS 3 Score Details (3.7)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: Low - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: Low - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/puma/puma/security/advisories/GHSA-48w2-rm65-62xx
Release Date: 2021-10-12
Fix Resolution: puma - 4.3.9, 5.5.1
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