waitress: python-waitress: request processing race condition in HTTP pipelining with invalid first request

A flaw was found in the Waitress WSGI server for Python. A remote client can send a request that is exactly recvbytes, which defaults to 8192 long, followed by a secondary request using HTTP pipelining. When request lookahead is disabled default, Waitress won't read any more requests, and when th...

Security update for python-waitress

This update for python-waitress fixes the following issues: CVE-2024-49768: Fixed request processing race condition in HTTP pipelining with invalid first request when lookahead is enabled bsc1232556 CVE-2024-49769: Fixed incorrect connection clean up leads to a busy-loop and resource exhaustion...

CVE-2024-49768

A flaw was found in the Waitress WSGI server for Python. A remote client can send a request that is exactly recvbytes, which defaults to 8192 long, followed by a secondary request using HTTP pipelining. When request lookahead is disabled default, Waitress won't read any more requests, and when th...

UBUNTU-CVE-2024-49768

Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recvbytes 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...

Time-of-check Time-of-use (TOCTOU) Race Condition

Overview waitress is a production-quality pure-Python WSGI server with very acceptable performance. Affected versions of this package are vulnerable to Time-of-check Time-of-use TOCTOU Race Condition in HTTP pipelining when handling an invalid initial request. An attacker can exploit this...

GHSA-9298-4CF8-G4WJ Waitress has request processing race condition in HTTP pipelining with invalid first request

Impact A remote client may send a request that is exactly recvbytes 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 th...

CVE-2024-49768 Waitress has request processing race condition in HTTP pipelining with invalid first request

Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recvbytes 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...

CVE-2024-49768

Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recvbytes 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...

CVE-2024-49768

CVE-2024-49768 (Waitress) : A race condition in HTTP pipelining with request lookahead can cause a mismanaged second request while the first is being processed. Waitress 3.0.1 fixes the race; as a workaround, disable channel_request_lookahead (default 0). Public advisories reference exposure in I...

CVE-2024-49768 Waitress has request processing race condition in HTTP pipelining with invalid first request

Waitress is a Web Server Gateway Interface server for Python 2 and 3. A remote client may send a request that is exactly recvbytes 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...

PT-2024-9201

Name of the Vulnerable Software and Affected Versions: Waitress versions prior to 3.0.1 Description: The issue is related to a race condition in the Waitress WSGI server for Python, which can be exploited by a remote client sending a request that is exactly recv bytes defaults to 8192 long,...

SUSE CVE-2019-16786

Waitress through version 1.3.1 would parse the Transfer-Encoding header and only look for a single string value, if that value was not chunked it would fall through and use the Content-Length header instead. According to the HTTP standard Transfer-Encoding should be a comma separated list, with t...

CVE-2022-38667

HTTP applications servers based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it ha...

CVE-2022-38667

HTTP applications servers based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it ha...

CVE-2022-38667

CVE-2022-38667 affects Crow HTTP applications up to and including 1.0+4. The issue is a Use-After-Free that can lead to code execution when HTTP pipelining is used. The root cause is that the HTTP parser supports pipelining, but the asynchronous Connection layer does not track the progression of ...

CVE-2022-38667

HTTP applications servers based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it ha...

GHSA-H6C8-RG87-F3PC Apache Tomcat HTTP BIO Connector Error Discloses Information From Different Requests to Remote Users

The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to "a mix-up of responses for...

Apache Tomcat HTTP BIO Connector Error Discloses Information From Different Requests to Remote Users

The HTTP BIO connector in Apache Tomcat 7.0.x before 7.0.12 does not properly handle HTTP pipelining, which allows remote attackers to read responses intended for other clients in opportunistic circumstances by examining the application data in HTTP packets, related to "a mix-up of responses for...

Mageia: Security Advisory (MGASA-2020-0083)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

DDoS attacks in Q3 2021

News overview Q3 2021 brought two new DDoS attack vectors, potentially posing a serious threat, including for major web resources. A team of researchers from the University of Maryland and the University of Colorado Boulder found a way to spoof the victims IP address over TCP. To date,...