Upstream information

CVE-2020-36843 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
  CNA (MITRE) SUSE
Base Score 4.3 7.5
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Local Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Changed Unchanged
Confidentiality Impact None None
Integrity Impact Low High
Availability Impact None None
CVSSv3 Version 3.1 3.1
CVSS v4 Scores
  SUSE
Base Score 8.7
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact High
Vulnerable System Availability Impact None
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1239551 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • ed25519-java >= 0.3.0-6.1
  • ed25519-java-javadoc >= 0.3.0-6.1
 Patchnames:
openSUSE-Tumbleweed-2025-14892

List of packages in QA

Product(s) Package(s)
SUSE Enterprise Storage 7.1
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Module for Development Tools 15 SP6
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server 15 SP6
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Desktop 15 SP6
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise High Performance Computing 15 SP6
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server 15 SP3-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server 15 SP4-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server 15 SP5-LTSS
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • ed25519-java >= 0.3.0-150200.5.9.1
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • ed25519-java >= 0.3.0-150200.5.9.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Desktop 15 SP6 ed25519-java In progress
SUSE Linux Enterprise High Performance Computing 15 SP6 ed25519-java In progress
SUSE Linux Enterprise Module for Development Tools 15 SP6 ed25519-java In progress
SUSE Linux Enterprise Server 15 SP6 ed25519-java In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP6 ed25519-java In progress
SUSE Manager Proxy 4.3 ed25519-java Affected
SUSE Manager Retail Branch Server 4.3 ed25519-java Affected
SUSE Manager Server 4.3 ed25519-java Affected
openSUSE Leap 15.6 ed25519-java Affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS ed25519-java In progress
SUSE Linux Enterprise High Performance Computing 15 SP4 ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS ed25519-java In progress
SUSE Linux Enterprise High Performance Computing 15 SP5 ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS ed25519-java In progress
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS ed25519-java In progress
SUSE Linux Enterprise Module for Development Tools 15 SP3 ed25519-java Affected
SUSE Linux Enterprise Module for Development Tools 15 SP4 ed25519-java Affected
SUSE Linux Enterprise Module for Development Tools 15 SP5 ed25519-java Affected
SUSE Linux Enterprise Server 15 SP3 ed25519-java Affected
SUSE Linux Enterprise Server 15 SP3-LTSS ed25519-java In progress
SUSE Linux Enterprise Server 15 SP4 ed25519-java Affected
SUSE Linux Enterprise Server 15 SP4-LTSS ed25519-java In progress
SUSE Linux Enterprise Server 15 SP5 ed25519-java Affected
SUSE Linux Enterprise Server 15 SP5-LTSS ed25519-java In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP3 ed25519-java In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP4 ed25519-java In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP5 ed25519-java In progress
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7.1 ed25519-java In progress
SUSE Linux Enterprise Desktop 15 SP3 ed25519-java Affected
SUSE Linux Enterprise Desktop 15 SP4 ed25519-java Affected
SUSE Linux Enterprise Desktop 15 SP5 ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS ed25519-java Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS ed25519-java In progress
SUSE Linux Enterprise Real Time 15 SP3 ed25519-java Affected
SUSE Linux Enterprise Real Time 15 SP4 ed25519-java Affected
SUSE Linux Enterprise Server 15 SP2-BCL ed25519-java Affected
SUSE Linux Enterprise Server 15 SP2-LTSS ed25519-java Affected
SUSE Linux Enterprise Server 15 SP3-BCL ed25519-java Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 ed25519-java Affected
SUSE Manager Proxy 4.2 ed25519-java Affected
SUSE Manager Retail Branch Server 4.2 ed25519-java Affected
SUSE Manager Server 4.2 ed25519-java Affected
openSUSE Leap 15.5 ed25519-java Affected

SUSE Timeline for this CVE

CVE page created: Thu Mar 13 10:00:12 2025
CVE page last modified: Mon Mar 17 14:43:22 2025