Source: waitress
Version: 3.0.0-1
Severity: grave
Tags: security upstream
X-Debbugs-Cc: car...@debian.org, Debian Security Team <t...@security.debian.org>
Control: found -1 2.1.2-2

Hi,

The following vulnerability was published for waitress.

CVE-2024-49768[0]:
| Waitress is a Web Server Gateway Interface server for Python 2 and
| 3. A remote client may send a request that is exactly recv_bytes
| (defaults to 8192) long, followed by a secondary request using HTTP
| pipelining. When request lookahead is disabled (default) we won't
| read any more requests, and when the first request fails due to a
| parsing error, we simply close the connection. However when request
| lookahead is enabled, it is possible to process and receive the
| first request, start sending the error message back to the client
| while we read the next request and queue it. This will allow the
| secondary request to be serviced by the worker thread while the
| connection should be closed. Waitress 3.0.1 fixes the race
| condition. As a workaround, disable channel_request_lookahead, this
| is set to 0 by default disabling this feature.


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-2024-49768
    https://www.cve.org/CVERecord?id=CVE-2024-49768
[1] https://github.com/Pylons/waitress/security/advisories/GHSA-9298-4cf8-g4wj

Regards,
Salvatore

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