Safety vulnerability ID: 49257
The information on this page was manually curated by our Cybersecurity Intelligence Team.
Waitress 2.1.2 includes a fix for CVE-2022-31015: 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 workaround 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.
https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw
Latest version: 3.0.2
Waitress WSGI server
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. See CVE-2022-31015.
CONFIRM:https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw: https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw
MISC:https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48: https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48
MISC:https://github.com/Pylons/waitress/issues/374: https://github.com/Pylons/waitress/issues/374
MISC:https://github.com/Pylons/waitress/pull/377: https://github.com/Pylons/waitress/pull/377
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