Security update for netty, netty-tcnative SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:2974-1 Final 1 1 2023-07-26T07:32:17Z current 2023-07-26T07:32:17Z 2023-07-26T07:32:17Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for netty, netty-tcnative This update for netty, netty-tcnative fixes the following issues: Upgrade to upstream version 4.1.94: - CVE-2023-34462: Allow to limit the maximum lenght of the ClientHello (bsc#1212637). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-2974,SUSE-SLE-Module-Development-Tools-15-SP4-2023-2974,SUSE-SLE-Module-Development-Tools-15-SP5-2023-2974,SUSE-SLE-Module-Packagehub-Subpackages-15-SP5-2023-2974,SUSE-SLE-Product-RT-15-SP3-2023-2974,openSUSE-SLE-15.4-2023-2974,openSUSE-SLE-15.5-2023-2974 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-20232974-1/ Link for SUSE-SU-2023:2974-1 https://lists.suse.com/pipermail/sle-security-updates/2023-July/015642.html E-Mail link for SUSE-SU-2023:2974-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1212637 SUSE Bug 1212637 https://www.suse.com/security/cve/CVE-2023-34462/ SUSE CVE CVE-2023-34462 page SUSE Linux Enterprise Module for Development Tools 15 SP4 SUSE Linux Enterprise Module for Development Tools 15 SP5 SUSE Linux Enterprise Module for Package Hub 15 SP5 SUSE Linux Enterprise Real Time 15 SP3 openSUSE Leap 15.4 openSUSE Leap 15.5 netty-4.1.94-150200.4.17.1 netty-javadoc-4.1.94-150200.4.17.1 netty-poms-4.1.94-150200.4.17.1 netty-tcnative-2.0.61-150200.3.13.1 netty-tcnative-javadoc-2.0.61-150200.3.13.1 netty-tcnative-2.0.61-150200.3.13.1 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP4 netty-tcnative-2.0.61-150200.3.13.1 as a component of SUSE Linux Enterprise Module for Development Tools 15 SP5 netty-4.1.94-150200.4.17.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP5 netty-javadoc-4.1.94-150200.4.17.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP5 netty-poms-4.1.94-150200.4.17.1 as a component of SUSE Linux Enterprise Module for Package Hub 15 SP5 netty-tcnative-2.0.61-150200.3.13.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 netty-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.4 netty-javadoc-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.4 netty-poms-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.4 netty-tcnative-2.0.61-150200.3.13.1 as a component of openSUSE Leap 15.4 netty-tcnative-javadoc-2.0.61-150200.3.13.1 as a component of openSUSE Leap 15.4 netty-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.5 netty-javadoc-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.5 netty-poms-4.1.94-150200.4.17.1 as a component of openSUSE Leap 15.5 netty-tcnative-2.0.61-150200.3.13.1 as a component of openSUSE Leap 15.5 netty-tcnative-javadoc-2.0.61-150200.3.13.1 as a component of openSUSE Leap 15.5 Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. The `SniHandler` can allocate up to 16MB of heap for each channel during the TLS handshake. When the handler or the channel does not have an idle timeout, it can be used to make a TCP server using the `SniHandler` to allocate 16MB of heap. The `SniHandler` class is a handler that waits for the TLS handshake to configure a `SslHandler` according to the indicated server name by the `ClientHello` record. For this matter it allocates a `ByteBuf` using the value defined in the `ClientHello` record. Normally the value of the packet should be smaller than the handshake packet but there are not checks done here and the way the code is written, it is possible to craft a packet that makes the `SslClientHelloHandler`. This vulnerability has been fixed in version 4.1.94.Final. CVE-2023-34462 SUSE Linux Enterprise Module for Development Tools 15 SP4:netty-tcnative-2.0.61-150200.3.13.1 SUSE Linux Enterprise Module for Development Tools 15 SP5:netty-tcnative-2.0.61-150200.3.13.1 SUSE Linux Enterprise Module for Package Hub 15 SP5:netty-4.1.94-150200.4.17.1 SUSE Linux Enterprise Module for Package Hub 15 SP5:netty-javadoc-4.1.94-150200.4.17.1 SUSE Linux Enterprise Module for Package Hub 15 SP5:netty-poms-4.1.94-150200.4.17.1 SUSE Linux Enterprise Real Time 15 SP3:netty-tcnative-2.0.61-150200.3.13.1 openSUSE Leap 15.4:netty-4.1.94-150200.4.17.1 openSUSE Leap 15.4:netty-javadoc-4.1.94-150200.4.17.1 openSUSE Leap 15.4:netty-poms-4.1.94-150200.4.17.1 openSUSE Leap 15.4:netty-tcnative-2.0.61-150200.3.13.1 openSUSE Leap 15.4:netty-tcnative-javadoc-2.0.61-150200.3.13.1 openSUSE Leap 15.5:netty-4.1.94-150200.4.17.1 openSUSE Leap 15.5:netty-javadoc-4.1.94-150200.4.17.1 openSUSE Leap 15.5:netty-poms-4.1.94-150200.4.17.1 openSUSE Leap 15.5:netty-tcnative-2.0.61-150200.3.13.1 openSUSE Leap 15.5:netty-tcnative-javadoc-2.0.61-150200.3.13.1 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-20232974-1/ https://www.suse.com/security/cve/CVE-2023-34462.html CVE-2023-34462 https://bugzilla.suse.com/1212637 SUSE Bug 1212637