Security update for python-aiohttp SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:4909-1 Final 1 1 2023-12-19T15:01:47Z current 2023-12-19T15:01:47Z 2023-12-19T15:01:47Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-aiohttp This update for python-aiohttp fixes the following issues: - CVE-2023-47641: Fixed inconsistent interpretation of the http protocol, if content-length and transport-encoding are in the same header with transport-encoding value of 'chunked*' (bsc#1217174) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES15-SP3-BYOS-Azure-2023-4909,Image SLES15-SP3-HPC-BYOS-Azure-2023-4909,Image SLES15-SP3-SAP-BYOS-Azure-2023-4909,Image SLES15-SP3-SAPCAL-Azure-2023-4909,SUSE-2023-4909,SUSE-SLE-Module-Public-Cloud-15-SP1-2023-4909,SUSE-SLE-Module-Public-Cloud-15-SP2-2023-4909,SUSE-SLE-Module-Public-Cloud-15-SP3-2023-4909,SUSE-SLE-Module-Public-Cloud-15-SP4-2023-4909,SUSE-SLE-Module-Public-Cloud-15-SP5-2023-4909,openSUSE-SLE-15.4-2023-4909,openSUSE-SLE-15.5-2023-4909 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20234909-1/ Link for SUSE-SU-2023:4909-1 https://lists.suse.com/pipermail/sle-security-updates/2023-December/017488.html E-Mail link for SUSE-SU-2023:4909-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1217174 SUSE Bug 1217174 https://www.suse.com/security/cve/CVE-2023-47641/ SUSE CVE CVE-2023-47641 page Image SLES15-SP3-BYOS-Azure Image SLES15-SP3-HPC-BYOS-Azure Image SLES15-SP3-SAP-BYOS-Azure Image SLES15-SP3-SAPCAL-Azure SUSE Linux Enterprise Module for Public Cloud 15 SP1 SUSE Linux Enterprise Module for Public Cloud 15 SP2 SUSE Linux Enterprise Module for Public Cloud 15 SP3 SUSE Linux Enterprise Module for Public Cloud 15 SP4 SUSE Linux Enterprise Module for Public Cloud 15 SP5 openSUSE Leap 15.4 openSUSE Leap 15.5 python3-aiohttp-3.6.0-150100.3.12.1 python-aiohttp-doc-3.6.0-150100.3.12.1 python3-aiohttp-3.6.0-150100.3.12.1 as a component of Image SLES15-SP3-BYOS-Azure python3-aiohttp-3.6.0-150100.3.12.1 as a component of Image SLES15-SP3-HPC-BYOS-Azure python3-aiohttp-3.6.0-150100.3.12.1 as a component of Image SLES15-SP3-SAP-BYOS-Azure python3-aiohttp-3.6.0-150100.3.12.1 as a component of Image SLES15-SP3-SAPCAL-Azure python-aiohttp-doc-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP1 python3-aiohttp-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP1 python-aiohttp-doc-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP2 python3-aiohttp-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP2 python3-aiohttp-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP3 python3-aiohttp-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP4 python3-aiohttp-3.6.0-150100.3.12.1 as a component of SUSE Linux Enterprise Module for Public Cloud 15 SP5 python-aiohttp-doc-3.6.0-150100.3.12.1 as a component of openSUSE Leap 15.4 python3-aiohttp-3.6.0-150100.3.12.1 as a component of openSUSE Leap 15.4 python-aiohttp-doc-3.6.0-150100.3.12.1 as a component of openSUSE Leap 15.5 python3-aiohttp-3.6.0-150100.3.12.1 as a component of openSUSE Leap 15.5 aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. Affected versions of aiohttp have a security vulnerability regarding the inconsistent interpretation of the http protocol. HTTP/1.1 is a persistent protocol, if both Content-Length(CL) and Transfer-Encoding(TE) header values are present it can lead to incorrect interpretation of two entities that parse the HTTP and we can poison other sockets with this incorrect interpretation. A possible Proof-of-Concept (POC) would be a configuration with a reverse proxy(frontend) that accepts both CL and TE headers and aiohttp as backend. As aiohttp parses anything with chunked, we can pass a chunked123 as TE, the frontend entity will ignore this header and will parse Content-Length. The impact of this vulnerability is that it is possible to bypass any proxy rule, poisoning sockets to other users like passing Authentication Headers, also if it is present an Open Redirect an attacker could combine it to redirect random users to another website and log the request. This vulnerability has been addressed in release 3.8.0 of aiohttp. Users are advised to upgrade. There are no known workarounds for this vulnerability. CVE-2023-47641 Image SLES15-SP3-BYOS-Azure:python3-aiohttp-3.6.0-150100.3.12.1 Image SLES15-SP3-HPC-BYOS-Azure:python3-aiohttp-3.6.0-150100.3.12.1 Image SLES15-SP3-SAP-BYOS-Azure:python3-aiohttp-3.6.0-150100.3.12.1 Image SLES15-SP3-SAPCAL-Azure:python3-aiohttp-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP1:python-aiohttp-doc-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP1:python3-aiohttp-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP2:python-aiohttp-doc-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP2:python3-aiohttp-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP3:python3-aiohttp-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP4:python3-aiohttp-3.6.0-150100.3.12.1 SUSE Linux Enterprise Module for Public Cloud 15 SP5:python3-aiohttp-3.6.0-150100.3.12.1 openSUSE Leap 15.4:python-aiohttp-doc-3.6.0-150100.3.12.1 openSUSE Leap 15.4:python3-aiohttp-3.6.0-150100.3.12.1 openSUSE Leap 15.5:python-aiohttp-doc-3.6.0-150100.3.12.1 openSUSE Leap 15.5:python3-aiohttp-3.6.0-150100.3.12.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20234909-1/ https://www.suse.com/security/cve/CVE-2023-47641.html CVE-2023-47641 https://bugzilla.suse.com/1217174 SUSE Bug 1217174