CVE-2020-36843 MEDIUM

CVE-2020-36843

Vendor Str4D
Product ed25519-java
Weakness CWE-347
Published March 13, 2025
Last update March 18, 2025
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 13, 2025 CVE published
March 18, 2025 Record updated