CVE-2020-5249

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Summary

CVECVE-2020-5249
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-02 16:15:00 UTC
Updated2023-11-07 03:23:00 UTC
DescriptionIn 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.

Risk And Classification

Problem Types: CWE-74

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Puma Puma All All All All
Application Puma Puma All All All All

References

ReferenceSourceLinkTags
HTTP Response Splitting · Advisory · puma/puma · GitHub MISC github.com Third Party Advisory
[SECURITY] Fedora 31 Update: rubygem-puma-3.12.4-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 30 Update: rubygem-puma-3.12.4-1.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 32 Update: rubygem-puma-4.3.3-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 30 Update: rubygem-puma-3.12.4-1.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
HTTP Injection - fix bug + 1 more vector (#2136) · puma/puma@c22712f · GitHub MISC github.com Patch, Third Party Advisory
HTTP Response Splitting (Early Hints) · Advisory · puma/puma · GitHub CONFIRM github.com Third Party Advisory
HTTP Response Splitting Software Attack | OWASP Foundation MISC owasp.org Third Party Advisory
[SECURITY] Fedora 32 Update: rubygem-puma-4.3.3-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 31 Update: rubygem-puma-3.12.4-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 750577 OpenSUSE Security Update for rmt-server (openSUSE-SU-2020:2000-1)
  • 750580 OpenSUSE Security Update for rmt-server (openSUSE-SU-2020:1993-1)
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