CVE-2022-31015 – waitress

Package

Manager: pip
Name: waitress
Vulnerable Version: >=2.1.0 <2.1.2

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00443 pctl0.62463

Details

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](mailto:pylons-project-security@googlegroups.com) (if security related)

Metadata

Created: 2022-06-02T20:37:48Z
Modified: 2024-11-19T16:18:32Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/06/GHSA-f5x9-8jwc-25rw/GHSA-f5x9-8jwc-25rw.json
CWE IDs: ["CWE-248", "CWE-362"]
Alternative ID: GHSA-f5x9-8jwc-25rw
Finding: F124
Auto approve: 1