CVE-2020-36843

Published: Mar 13, 2025Modified: Mar 13, 2025

4.3

Vector

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

Exploitability: 2.5 / Impact: 1.4

Source: MITRE (Secondary)

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.

Related CWEs

CWE-347

Improper Verification of Cryptographic Signature

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

References (2)

https://eprint.iacr.org/2020/1244

Source: cve@mitre.org

https://github.com/str4d/ed25519-java/issues/82#issue-727629226

Source: cve@mitre.org

Timeline

No history available yet.