Uncaught Exception (due to a data race) leads to process termination in Waitress
Impact
Waitress 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.
Patches
This issue has been fixed in Waitress 2.1.2 by no longer allowing the WSGI thread to close the socket, instead it is always delegated to the main thread.
Workarounds
There is no work-around, however users using waitress behind a reverse proxy server are less likely to have issues if the reverse proxy always reads the full response.
For more information
If you have any questions or comments about this advisory:
- Open an issue in https://github.com/Pylons/waitress/issues (if not sensitive or security related)
- email the Pylons Security mailing list: pylons-project-security@googlegroups.com (if security related)
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | waitress | >= 2.1.0, < 2.1.2 | 2.1.2 |
Referencias
- https://github.com/Pylons/waitress/pull/377
- https://github.com/Pylons/waitress/issues/374
- https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw
- https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48
- https://nvd.nist.gov/vuln/detail/CVE-2022-31015
- https://github.com/Pylons/waitress
- https://github.com/pypa/advisory-database/tree/main/vulns/waitress/PYSEC-2022-205.yaml
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H- Debilidad (CWE)
CWE-248, CWE-362- Plataforma
- Python (PyPI)
- Paquete
waitress- Publicada
- 31.05.2022
- Actualizado
- 11.10.2026 11:20
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2022-205 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-f5x9-8jwc-25rw - CC BY 4.0
Historial de vulnerabilidades: waitress
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 10
- Primera → última
- 12.2019 10.2024
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 2
- Alta 4
- Media 4
Divulgaciones por año
- 2019: 5
- 2020: 1
- 2021: 0
- 2022: 2
- 2023: 0
- 2024: 2
- 2025: 0
- 2026: 0
-
Uncaught Exception (due to a data race) leads to process termination in Waitress esta entrada
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.