{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for ed25519-java","title":"Title of the patch"},{"category":"description","text":"This update for ed25519-java fixes the following issues:\n\n- CVE-2020-36843: Fixed no check performed on scalar to avoid signature malleability (bsc#1239551)\n","title":"Description of the patch"},{"category":"details","text":"SUSE-2025-1029,SUSE-SLE-Module-Development-Tools-15-SP6-2025-1029,SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-1029,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1029,SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1029,SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1029,SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1029,SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-1029,SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1029,SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1029,SUSE-SLE-Product-SLES_SAP-15-SP3-2025-1029,SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1029,SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1029,SUSE-Storage-7.1-2025-1029,openSUSE-SLE-15.6-2025-1029","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_1029-1.json"},{"category":"self","summary":"URL for SUSE-SU-2025:1029-1","url":"https://www.suse.com/support/update/announcement/2025/suse-su-20251029-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2025:1029-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2025-March/020610.html"},{"category":"self","summary":"SUSE Bug 1239551","url":"https://bugzilla.suse.com/1239551"},{"category":"self","summary":"SUSE CVE CVE-2020-36843 page","url":"https://www.suse.com/security/cve/CVE-2020-36843/"}],"title":"Security update for 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Page","text":"https://www.suse.com/security/cve/CVE-2020-36843"}],"notes":[{"category":"general","text":"The implementation of EdDSA in EdDSA-Java (aka ed25519-java) through 0.3.0 exhibits signature malleability and does not satisfy the SUF-CMA (Strong Existential Unforgeability under Chosen Message Attacks) property. This allows attackers to create new valid signatures different from previous signatures for a known message.","title":"CVE description"}],"product_status":{"recommended":["SUSE Enterprise Storage 7.1:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Module for Development Tools 15 SP6:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP3:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP4:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP5:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-javadoc-0.3.0-150200.5.9.1.noarch"]},"references":[{"category":"external","summary":"CVE-2020-36843","url":"https://www.suse.com/security/cve/CVE-2020-36843"},{"category":"external","summary":"SUSE Bug 1239551 for CVE-2020-36843","url":"https://bugzilla.suse.com/1239551"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Enterprise Storage 7.1:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Module for Development Tools 15 SP6:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP3:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP4:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP5:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-javadoc-0.3.0-150200.5.9.1.noarch"]}],"scores":[{"cvss_v3":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"products":["SUSE Enterprise Storage 7.1:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Module for Development Tools 15 SP6:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP3-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP4-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server 15 SP5-LTSS:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP3:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP4:ed25519-java-0.3.0-150200.5.9.1.noarch","SUSE Linux Enterprise Server for SAP Applications 15 SP5:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-0.3.0-150200.5.9.1.noarch","openSUSE Leap 15.6:ed25519-java-javadoc-0.3.0-150200.5.9.1.noarch"]}],"threats":[{"category":"impact","date":"2025-03-26T13:11:18Z","details":"important"}],"title":"CVE-2020-36843"}]}