Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-3000-1 waitress security update
EUVD EUVD EUVD-2020-0239 Waitress through version 1.3.1 allows request smuggling by sending the Content-Length header twice. Waitress would header fold a double Content-Length header and due to being unable to cast the now comma separated value to an integer would set the Content-Length to 0 internally. If two Content-Length headers are sent in a single request, Waitress would treat the request as having no body, thereby treating the body of the request as a new request in HTTP pipelining. This issue is fixed in Waitress 1.4.0.
Github GHSA Github GHSA GHSA-j7j6-7hfx-5522 Inconsistent Interpretation of HTTP Requests in Waitress
Fixes

Solution

No solution given by the vendor.


Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-05T01:24:48.422Z

Reserved: 2019-09-24T00:00:00

Link: CVE-2019-16792

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-01-22T19:15:11.140

Modified: 2024-11-21T04:31:11.940

Link: CVE-2019-16792

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses