# Security update for dnsdist Announcement ID: SUSE-SU-2025:01745-1 Release Date: 2025-05-29T12:22:10Z Rating: important References: * bsc#1243378 Cross-References: * CVE-2025-30193 CVSS scores: * CVE-2025-30193 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N * CVE-2025-30193 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H * CVE-2025-30193 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * Basesystem Module 15-SP6 * openSUSE Leap 15.4 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Manager Proxy 4.3 * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Server 4.3 An update that solves one vulnerability can now be installed. ## Description: This update for dnsdist fixes the following issues: * CVE-2025-30193: stack exhaustion when processing too many queries on incoming TCP connections leads to a denial-of-service (bsc#1243378). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Manager Proxy 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1745=1 * SUSE Manager Retail Branch Server 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch- Server-4.3-2025-1745=1 * SUSE Manager Server 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1745=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2025-1745=1 * openSUSE Leap 15.6 zypper in -t patch openSUSE-SLE-15.6-2025-1745=1 * Basesystem Module 15-SP6 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-1745=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1745=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1745=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1745=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1745=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1745=1 * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1745=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1745=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1745=1 ## Package List: * SUSE Manager Proxy 4.3 (x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Manager Retail Branch Server 4.3 (x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Manager Server 4.3 (x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) * dnsdist-debuginfo-1.8.0-150400.9.6.1 * dnsdist-1.8.0-150400.9.6.1 * dnsdist-debugsource-1.8.0-150400.9.6.1 ## References: * https://www.suse.com/security/cve/CVE-2025-30193.html * https://bugzilla.suse.com/show_bug.cgi?id=1243378