CVE-2022-31015

Waitress is a Web Server Gateway Interface server for Python 2 and 3.
Waitress versions 2.1.0 and 2.1.1 may terminate early due to a thread
closing a socket while the main thread is about to call select(). This will
lead to the main thread raising an exception that is not handled and then
causing the entire application to be killed. This issue has been fixed in
Waitress 2.1.2 by no longer allowing the WSGI thread to close the socket.
Instead, that is always delegated to the main thread. There is no
work-around for this issue. However, users using waitress behind a reverse
proxy server are less likely to have issues if the reverse proxy always
reads the full response.

Bugs

• <https://github.com/Pylons/waitress/issues/374&gt;
• <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012315&gt;

Notes