Security update for netty3 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:2047-1 Final 1 1 2022-06-13T07:19:25Z current 2022-06-13T07:19:25Z 2022-06-13T07:19:25Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for netty3 This update for netty3 fixes the following issues: - CVE-2021-43797: Fixed a potential HTTP request smuggling issue due to insufficient validation against control characters (bsc#1193672). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2022-2047,SUSE-SLE-Module-Development-Tools-15-SP3-2022-2047,SUSE-SLE-Module-Development-Tools-15-SP4-2022-2047,openSUSE-SLE-15.3-2022-2047,openSUSE-SLE-15.4-2022-2047 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-20222047-1/ Link for SUSE-SU-2022:2047-1 https://lists.suse.com/pipermail/sle-security-updates/2022-June/011268.html E-Mail link for SUSE-SU-2022:2047-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1193672 SUSE Bug 1193672 https://bugzilla.suse.com/1197787 SUSE Bug 1197787 https://www.suse.com/security/cve/CVE-2021-43797/ SUSE CVE CVE-2021-43797 page SUSE Linux Enterprise Module for Development Tools 15 SP3 SUSE Linux Enterprise Module for Development Tools 15 SP4 openSUSE Leap 15.3 openSUSE Leap 15.4 netty3-3.10.6-150200.3.3.2 netty3-javadoc-3.10.6-150200.3.3.2 netty3-3.10.6-150200.3.3.2 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP3 netty3-3.10.6-150200.3.3.2 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP4 netty3-3.10.6-150200.3.3.2 as a component of openSUSE Leap 15.3 netty3-javadoc-3.10.6-150200.3.3.2 as a component of openSUSE Leap 15.3 netty3-3.10.6-150200.3.3.2 as a component of openSUSE Leap 15.4 netty3-javadoc-3.10.6-150200.3.3.2 as a component of openSUSE Leap 15.4 Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final. CVE-2021-43797 SUSE Linux Enterprise Module for Development Tools 15 SP3:netty3-3.10.6-150200.3.3.2 SUSE Linux Enterprise Module for Development Tools 15 SP4:netty3-3.10.6-150200.3.3.2 openSUSE Leap 15.3:netty3-3.10.6-150200.3.3.2 openSUSE Leap 15.3:netty3-javadoc-3.10.6-150200.3.3.2 openSUSE Leap 15.4:netty3-3.10.6-150200.3.3.2 openSUSE Leap 15.4:netty3-javadoc-3.10.6-150200.3.3.2 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-20222047-1/ https://www.suse.com/security/cve/CVE-2021-43797.html CVE-2021-43797 https://bugzilla.suse.com/1193672 SUSE Bug 1193672