DEBIAN-CVE-2023-40175

Source
https://security-tracker.debian.org/tracker/CVE-2023-40175
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-40175.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-40175
Upstream
Published
2023-08-18T22:15:11Z
Modified
2025-09-25T23:29:46.772269Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / puma

Package

Name
puma
Purl
pkg:deb/debian/puma?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.3.8-1
4.3.8-1+deb11u1
4.3.8-1+deb11u2
4.3.8-1+deb11u3

5.*

5.2.2-1
5.2.2-2
5.3.2-1
5.3.2-2
5.3.2-3
5.5.2-1
5.5.2-2
5.6.4-1
5.6.5-1
5.6.5-2
5.6.5-3
5.6.5-4
5.6.7-1

6.*

6.0.2-1
6.4.0-1
6.4.0-2
6.4.0-3
6.4.0-4
6.4.2-1
6.4.2-2
6.4.2-3
6.4.2-4
6.4.2-5
6.4.2-6
6.4.3-1
6.4.3-2
6.4.3-3
6.6.0-1
6.6.0-2
6.6.0-3
6.6.0-4

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / puma

Package

Name
puma
Purl
pkg:deb/debian/puma?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.6.5-3+deb12u1

Affected versions

5.*

5.6.5-3

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / puma

Package

Name
puma
Purl
pkg:deb/debian/puma?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.6.7-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / puma

Package

Name
puma
Purl
pkg:deb/debian/puma?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.6.7-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}