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Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package rubygem-puma-debugsource  (opens in a new tab)

Threat Intelligence

EPSS
1.57% (73rd percentile)

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  • Snyk IDSNYK-RHEL8-RUBYGEMPUMADEBUGSOURCE-4415424
  • published26 Mar 2023
  • disclosed2 Mar 2020
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Introduced: 2 Mar 2020

CVE-2020-5249  (opens in a new tab)
CWE-79  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem-puma-debugsource package and not the rubygem-puma-debugsource package as distributed by RHEL.

In Puma (RubyGem) before 4.3.3 and 3.12.4, if an application using Puma allows untrusted input in an early-hints header, an attacker can use a carriage return character to end the header and inject malicious content, such as additional headers or an entirely new response body. This vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a vector for several other attacks, such as cross-site scripting (XSS). This is related to CVE-2020-5247, which fixed this vulnerability but only for regular responses. This has been fixed in 4.3.3 and 3.12.4.

References