ADVISORIES

• CVE-2015-7519 (NVD)
• GHSA-fxwv-953p-7qpf
• Vendor Advisory

GEM

passenger

SEVERITY

CVSS v3.x: 3.7 (Low)

PATCHED VERSIONS

• ~> 4.0.60
• >= 5.0.22

DESCRIPTION

It is possible in some cases, for clients to overwrite headers set by the server, resulting in a medium level security issue. Passenger 5 uses an SCGI-inspired format to pass headers to Ruby/Python applications, while Passenger 4 uses an SCGI-inspired format to pass headers to all applications. This implies a conversion to UPPER_CASE_WITH_UNDERSCORES whereby the difference between characters like '-' and '_' is lost.