DEBIAN-CVE-2019-16786

Source
https://security-tracker.debian.org/tracker/CVE-2019-16786
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-16786.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2019-16786
Upstream
Published
2019-12-20T23:15:11Z
Modified
2025-09-25T22:40:26Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with the inner-most encoding first, followed by any further transfer codings, ending with chunked. Requests sent with: "Transfer-Encoding: gzip, chunked" would incorrectly get ignored, and the request would use a Content-Length header instead to determine the body size of the HTTP message. This could allow for Waitress to treat a single request as multiple requests in the case of HTTP pipelining. This issue is fixed in Waitress 1.4.0.

References

Affected packages

Debian:11 / waitress

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / waitress

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / waitress

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / waitress

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}