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.
History

Tue, 18 Mar 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 13 Mar 2025 05:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-03-18T16:22:08.617Z

Reserved: 2025-03-13T00:00:00.000Z

Link: CVE-2020-36843

cve-icon Vulnrichment

Updated: 2025-03-18T16:22:04.608Z

cve-icon NVD

Status : Received

Published: 2025-03-13T06:15:34.043

Modified: 2025-03-13T06:15:34.043

Link: CVE-2020-36843

cve-icon Redhat

No data.