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CVE-2022-31015 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.9 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48 Patch  Third Party Advisory 
https://github.com/Pylons/waitress/issues/374 Exploit  Issue Tracking  Patch  Third Party Advisory 
https://github.com/Pylons/waitress/pull/377 Issue Tracking  Patch  Third Party Advisory 
https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-248 Uncaught Exception Provider acceptance level GitHub, Inc.  
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') Provider acceptance level GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-31015
NVD Published Date:
05/31/2022
NVD Last Modified:
06/14/2022
Source:
GitHub, Inc.