Security update for python-tornado SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:01726-1 Final 1 1 2025-05-28T13:46:00Z current 2025-05-28T13:46:00Z 2025-05-28T13:46:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-tornado This update for python-tornado fixes the following issues: - CVE-2025-47287: excessive logging when parsing malformed `multipart/form-data` can lead to a denial-of-service (bsc#1243268). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-1726,SUSE-SLE-Micro-5.3-2025-1726,SUSE-SLE-Micro-5.4-2025-1726,SUSE-SLE-Micro-5.5-2025-1726,SUSE-SLE-Module-Basesystem-15-SP6-2025-1726,SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-1726,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1726,SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1726,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1726,SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1726,SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-1726,SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1726,SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1726,SUSE-SLE-Product-SLES_SAP-15-SP3-2025-1726,SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1726,SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1726,SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1726,SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1726,SUSE-SUSE-MicroOS-5.2-2025-1726,SUSE-Storage-7.1-2025-1726 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202501726-1/ Link for SUSE-SU-2025:01726-1 https://lists.suse.com/pipermail/sle-updates/2025-May/039378.html E-Mail link for SUSE-SU-2025:01726-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1243268 SUSE Bug 1243268 https://www.suse.com/security/cve/CVE-2025-47287/ SUSE CVE CVE-2025-47287 page SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro 5.3 SUSE Linux Enterprise Micro 5.4 SUSE Linux Enterprise Micro 5.5 SUSE Linux Enterprise Module for Basesystem 15 SP6 SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Manager Proxy 4.3 SUSE Manager Server 4.3 python2-tornado-4.5.3-150000.3.10.1 python3-tornado-4.5.3-150000.3.10.1 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Enterprise Storage 7.1 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Micro 5.2 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Micro 5.3 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Micro 5.4 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Micro 5.5 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP6 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Manager Proxy 4.3 python3-tornado-4.5.3-150000.3.10.1 as a component of SUSE Manager Server 4.3 Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous. All versions of Tornado prior to 6.5.0 are affected. The vulnerable parser is enabled by default. Upgrade to Tornado version 6.50 to receive a patch. As a workaround, risk can be mitigated by blocking `Content-Type: multipart/form-data` in a proxy. CVE-2025-47287 SUSE Enterprise Storage 7.1:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Micro 5.2:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Micro 5.3:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Micro 5.4:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Micro 5.5:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Module for Basesystem 15 SP6:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server 15 SP3-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server 15 SP4-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server 15 SP5-LTSS:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:python3-tornado-4.5.3-150000.3.10.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:python3-tornado-4.5.3-150000.3.10.1 SUSE Manager Proxy 4.3:python3-tornado-4.5.3-150000.3.10.1 SUSE Manager Server 4.3:python3-tornado-4.5.3-150000.3.10.1 important 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/2025/suse-su-202501726-1/ https://www.suse.com/security/cve/CVE-2025-47287.html CVE-2025-47287 https://bugzilla.suse.com/1243268 SUSE Bug 1243268