CVE-2023-40175

Inconsistent Interpretation of HTTP Requests in puma

State
Published
Severity
7.3 High
Published
Aug 18, 2023
Updated
Oct 7, 2024
Reserved
Aug 9, 2023

Read the record on cve.org

Description

Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma exhibited incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in a way that allowed HTTP request smuggling. Severity of this issue is highly dependent on the nature of the web site using puma is. This could be caused by either incorrect parsing of trailing fields in chunked transfer encoding bodies or by parsing of blank/zero-length Content-Length headers. Both issues have been addressed and this vulnerability has been fixed in versions 6.3.1 and 5.6.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Scores

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LGitHub_M

Weaknesses

  • CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Affected Products

ProductVersions
pumapuma
  • < 5.6.7Affected
  • >= 6.0.0, < 6.3.1Affected

References

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