Candidate: CVE-2019-16792
PublicDate: 2020-01-22 19:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16792
 https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6
 https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes
Description:
 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.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
Priority: low
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N [7.5 HIGH]


Patches_waitress:
 upstream: https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65
upstream_waitress: released (1.4.1-1)
precise/esm_waitress: DNE
trusty_waitress: ignored (out of standard support)
trusty/esm_waitress: DNE
xenial_waitress: ignored (end of standard support, was needs-triage)
esm-infra/xenial_waitress: needs-triage
bionic_waitress: needs-triage
eoan_waitress: ignored (reached end-of-life)
focal_waitress: not-affected (1.4.1-1)
groovy_waitress: not-affected (1.4.1-1)
hirsute_waitress: not-affected (1.4.1-1)
impish_waitress: not-affected (1.4.1-1)
jammy_waitress: not-affected (1.4.1-1)
devel_waitress: not-affected (1.4.1-1)