Security update for openssl-3 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2024:1634-1 Final 1 1 2024-05-14T09:36:24Z current 2024-05-14T09:36:24Z 2024-05-14T09:36:24Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for openssl-3 This update for openssl-3 fixes the following issues: - CVE-2024-2511: Fixed unconstrained session cache growth in TLSv1.3 (bsc#1222548). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Container suse/ltss/sle15.5/sle15:latest-2024-1634,SUSE-2024-1634,SUSE-SLE-Module-Basesystem-15-SP5-2024-1634,openSUSE-SLE-15.5-2024-1634 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2024/suse-su-20241634-1/ Link for SUSE-SU-2024:1634-1 https://lists.suse.com/pipermail/sle-updates/2024-May/035255.html E-Mail link for SUSE-SU-2024:1634-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1222548 SUSE Bug 1222548 https://www.suse.com/security/cve/CVE-2024-2511/ SUSE CVE CVE-2024-2511 page Container suse/ltss/sle15.5/sle15:latest SUSE Linux Enterprise Module for Basesystem 15 SP5 openSUSE Leap 15.5 libopenssl3-3.0.8-150500.5.30.1 openssl-3-3.0.8-150500.5.30.1 libopenssl-3-devel-3.0.8-150500.5.30.1 libopenssl-3-devel-32bit-3.0.8-150500.5.30.1 libopenssl-3-devel-64bit-3.0.8-150500.5.30.1 libopenssl3-32bit-3.0.8-150500.5.30.1 libopenssl3-64bit-3.0.8-150500.5.30.1 openssl-3-doc-3.0.8-150500.5.30.1 libopenssl3-3.0.8-150500.5.30.1 as a component of Container suse/ltss/sle15.5/sle15:latest openssl-3-3.0.8-150500.5.30.1 as a component of Container suse/ltss/sle15.5/sle15:latest libopenssl-3-devel-3.0.8-150500.5.30.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 libopenssl3-3.0.8-150500.5.30.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 openssl-3-3.0.8-150500.5.30.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP5 libopenssl-3-devel-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 libopenssl-3-devel-32bit-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 libopenssl3-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 libopenssl3-32bit-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 openssl-3-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 openssl-3-doc-3.0.8-150500.5.30.1 as a component of openSUSE Leap 15.5 Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue. CVE-2024-2511 Container suse/ltss/sle15.5/sle15:latest:libopenssl3-3.0.8-150500.5.30.1 Container suse/ltss/sle15.5/sle15:latest:openssl-3-3.0.8-150500.5.30.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:libopenssl-3-devel-3.0.8-150500.5.30.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:libopenssl3-3.0.8-150500.5.30.1 SUSE Linux Enterprise Module for Basesystem 15 SP5:openssl-3-3.0.8-150500.5.30.1 openSUSE Leap 15.5:libopenssl-3-devel-3.0.8-150500.5.30.1 openSUSE Leap 15.5:libopenssl-3-devel-32bit-3.0.8-150500.5.30.1 openSUSE Leap 15.5:libopenssl3-3.0.8-150500.5.30.1 openSUSE Leap 15.5:libopenssl3-32bit-3.0.8-150500.5.30.1 openSUSE Leap 15.5:openssl-3-3.0.8-150500.5.30.1 openSUSE Leap 15.5:openssl-3-doc-3.0.8-150500.5.30.1 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/2024/suse-su-20241634-1/ https://www.suse.com/security/cve/CVE-2024-2511.html CVE-2024-2511 https://bugzilla.suse.com/1222548 SUSE Bug 1222548