CVE-2022-31015

 

Published at: - 01-06-2022 01:15

Last modified: - 14-06-2022 09:12

Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• 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

 

Keywords

NVD

 

CVE-2022-31015

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures