Security update for python-Twisted SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:1477-1 Final 1 1 2022-04-29T15:31:56Z current 2022-04-29T15:31:56Z 2022-04-29T15:31:56Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-Twisted This update for python-Twisted fixes the following issues: - CVE-2022-24801: Fixed to not be as lenient as earlier HTTP/1.1 RFCs to prevent HTTP request smuggling. (bsc#1198086) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2022-1477,SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2022-1477,SUSE-SLE-Module-Server-Applications-15-SP3-2022-1477,SUSE-SLE-Product-RT-15-SP2-2022-1477,openSUSE-SLE-15.3-2022-1477,openSUSE-SLE-15.4-2022-1477 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-20221477-1/ Link for SUSE-SU-2022:1477-1 https://lists.suse.com/pipermail/sle-security-updates/2022-April/010903.html E-Mail link for SUSE-SU-2022:1477-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1198086 SUSE Bug 1198086 https://www.suse.com/security/cve/CVE-2022-24801/ SUSE CVE CVE-2022-24801 page SUSE Linux Enterprise Module for Package Hub 15 SP3 SUSE Linux Enterprise Module for Server Applications 15 SP3 SUSE Linux Enterprise Real Time 15 SP2 openSUSE Leap 15.3 openSUSE Leap 15.4 python-Twisted-doc-19.10.0-150200.3.9.1 python2-Twisted-19.10.0-150200.3.9.1 python3-Twisted-19.10.0-150200.3.9.1 python3-Twisted-19.10.0-150200.3.9.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP3 python3-Twisted-19.10.0-150200.3.9.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP3 python3-Twisted-19.10.0-150200.3.9.1 as a component of SUSE Linux Enterprise Real Time 15 SP2 python-Twisted-doc-19.10.0-150200.3.9.1 as a component of openSUSE Leap 15.3 python2-Twisted-19.10.0-150200.3.9.1 as a component of openSUSE Leap 15.3 python3-Twisted-19.10.0-150200.3.9.1 as a component of openSUSE Leap 15.3 python2-Twisted-19.10.0-150200.3.9.1 as a component of openSUSE Leap 15.4 Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to version 22.4.0rc1, the Twisted Web HTTP 1.1 server, located in the `twisted.web.http` module, parsed several HTTP request constructs more leniently than permitted by RFC 7230. This non-conformant parsing can lead to desync if requests pass through multiple HTTP parsers, potentially resulting in HTTP request smuggling. Users who may be affected use Twisted Web's HTTP 1.1 server and/or proxy and also pass requests through a different HTTP server and/or proxy. The Twisted Web client is not affected. The HTTP 2.0 server uses a different parser, so it is not affected. The issue has been addressed in Twisted 22.4.0rc1. Two workarounds are available: Ensure any vulnerabilities in upstream proxies have been addressed, such as by upgrading them; or filter malformed requests by other means, such as configuration of an upstream proxy. CVE-2022-24801 SUSE Linux Enterprise Module for Package Hub 15 SP3:python3-Twisted-19.10.0-150200.3.9.1 SUSE Linux Enterprise Module for Server Applications 15 SP3:python3-Twisted-19.10.0-150200.3.9.1 SUSE Linux Enterprise Real Time 15 SP2:python3-Twisted-19.10.0-150200.3.9.1 openSUSE Leap 15.3:python-Twisted-doc-19.10.0-150200.3.9.1 openSUSE Leap 15.3:python2-Twisted-19.10.0-150200.3.9.1 openSUSE Leap 15.3:python3-Twisted-19.10.0-150200.3.9.1 openSUSE Leap 15.4:python2-Twisted-19.10.0-150200.3.9.1 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/2022/suse-su-20221477-1/ https://www.suse.com/security/cve/CVE-2022-24801.html CVE-2022-24801 https://bugzilla.suse.com/1198086 SUSE Bug 1198086