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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Pylons Waitress
<= 1.3.1 to ≤ 1.3.1affected
References
- https://www.oracle.com/security-alerts/cpuapr2022.html ↗
- https://docs.pylonsproject.org/projects/waitress/en/latest/#security-fixes ↗
- https://github.com/Pylons/waitress/security/advisories/GHSA-4ppp-gpcr-7qf6 ↗
- https://github.com/Pylons/waitress/commit/575994cd42e83fd772a5f7ec98b2c56751bd3f65 ↗
- https://lists.debian.org/debian-lts-announce/2022/05/msg00011.html ↗