Security update for python-Flask SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:2264-1 Final 1 1 2023-05-22T10:21:27Z current 2023-05-22T10:21:27Z 2023-05-22T10:21:27Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-Flask This update for python-Flask fixes the following issues: - CVE-2023-30861: Fixed a potential cookie confusion due to incorrect caching (bsc#1211246). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container ses/7.1/cephcsi/cephcsi:latest-2023-2264,Container ses/7.1/rook/ceph:latest-2023-2264,SUSE-2023-2264,SUSE-SLE-Module-Packagehub-Subpackages-15-SP4-2023-2264,SUSE-SLE-Module-Packagehub-Subpackages-15-SP5-2023-2264,SUSE-SLE-Product-HPC-15-SP1-LTSS-2023-2264,SUSE-SLE-Product-HPC-15-SP2-LTSS-2023-2264,SUSE-SLE-Product-HPC-15-SP3-ESPOS-2023-2264,SUSE-SLE-Product-HPC-15-SP3-LTSS-2023-2264,SUSE-SLE-Product-RT-15-SP3-2023-2264,SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-2264,SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-2264,SUSE-SLE-Product-SLES-15-SP3-LTSS-2023-2264,SUSE-SLE-Product-SLES_SAP-15-SP1-2023-2264,SUSE-SLE-Product-SLES_SAP-15-SP2-2023-2264,SUSE-SLE-Product-SLES_SAP-15-SP3-2023-2264,SUSE-SLE-Product-SUSE-Manager-Proxy-4.2-2023-2264,SUSE-SLE-Product-SUSE-Manager-Server-4.2-2023-2264,SUSE-Storage-7-2023-2264,SUSE-Storage-7.1-2023-2264 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-20232264-1/ Link for SUSE-SU-2023:2264-1 https://lists.suse.com/pipermail/sle-security-updates/2023-May/014934.html E-Mail link for SUSE-SU-2023:2264-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1211246 SUSE Bug 1211246 https://www.suse.com/security/cve/CVE-2023-30861/ SUSE CVE CVE-2023-30861 page Container ses/7.1/cephcsi/cephcsi:latest Container ses/7.1/rook/ceph:latest SUSE Enterprise Storage 7 SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise Module for Package Hub 15 SP4 SUSE Linux Enterprise Module for Package Hub 15 SP5 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP1-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP1 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.2 SUSE Manager Server 4.2 python3-Flask-1.0.2-150100.6.3.1 python2-Flask-1.0.2-150100.6.3.1 python2-Flask-doc-1.0.2-150100.6.3.1 python3-Flask-doc-1.0.2-150100.6.3.1 python3-Flask-1.0.2-150100.6.3.1 as a component of Container ses/7.1/cephcsi/cephcsi:latest python3-Flask-1.0.2-150100.6.3.1 as a component of Container ses/7.1/rook/ceph:latest python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Enterprise Storage 7 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Enterprise Storage 7.1 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS python2-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP4 python2-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP5 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server 15 SP1-LTSS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP1 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP2 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Manager Proxy 4.2 python3-Flask-1.0.2-150100.6.3.1 as a component of SUSE Manager Server 4.2 Flask is a lightweight WSGI web application framework. When all of the following conditions are met, a response containing data intended for one client may be cached and subsequently sent by the proxy to other clients. If the proxy also caches `Set-Cookie` headers, it may send one client's `session` cookie to other clients. The severity depends on the application's use of the session and the proxy's behavior regarding cookies. The risk depends on all these conditions being met. 1. The application must be hosted behind a caching proxy that does not strip cookies or ignore responses with cookies. 2. The application sets `session.permanent = True` 3. The application does not access or modify the session at any point during a request. 4. `SESSION_REFRESH_EACH_REQUEST` enabled (the default). 5. The application does not set a `Cache-Control` header to indicate that a page is private or should not be cached. This happens because vulnerable versions of Flask only set the `Vary: Cookie` header when the session is accessed or modified, not when it is refreshed (re-sent to update the expiration) without being accessed or modified. This issue has been fixed in versions 2.3.2 and 2.2.5. CVE-2023-30861 Container ses/7.1/cephcsi/cephcsi:latest:python3-Flask-1.0.2-150100.6.3.1 Container ses/7.1/rook/ceph:latest:python3-Flask-1.0.2-150100.6.3.1 SUSE Enterprise Storage 7.1:python3-Flask-1.0.2-150100.6.3.1 SUSE Enterprise Storage 7:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Module for Package Hub 15 SP4:python2-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Module for Package Hub 15 SP5:python2-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Real Time 15 SP3:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server 15 SP1-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server 15 SP2-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server 15 SP3-LTSS:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server for SAP Applications 15 SP1:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server for SAP Applications 15 SP2:python3-Flask-1.0.2-150100.6.3.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:python3-Flask-1.0.2-150100.6.3.1 SUSE Manager Proxy 4.2:python3-Flask-1.0.2-150100.6.3.1 SUSE Manager Server 4.2:python3-Flask-1.0.2-150100.6.3.1 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/2023/suse-su-20232264-1/ https://www.suse.com/security/cve/CVE-2023-30861.html CVE-2023-30861 https://bugzilla.suse.com/1211246 SUSE Bug 1211246