waitress: CVE-2022-31015

Debian Bug report logs - #1012315
waitress: CVE-2022-31015

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: waitress: CVE-2022-31015

Date: Fri, 03 Jun 2022 21:18:47 +0200

Source: waitress
Version: 2.1.1-2
Severity: important
Tags: security upstream
Forwarded: https://github.com/Pylons/waitress/issues/374
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for waitress.

CVE-2022-31015[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-31015
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-31015
[1] https://github.com/Pylons/waitress/issues/374
[2] https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw
[3] https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48

Please adjust the affected versions in the BTS as needed, can you
confirm if the assessment that the issue is introduced in 2.1.0
upstream only?

Regards,
Salvatore

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