CVE-2020-36843
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability4. percentile0.1%
ProductNet.i2p.crypto:eddsa
PublishedMar 13, 2025
First seenMar 13, 2025
Weakness typeCWE-347CWE-347
How to fix
Update
- net.i2p:i2p0.9.39 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| net.i2p.crypto:eddsaMaven | v ≤ 0.3.0 | — |
| net.i2p:i2pMaven | v < 0.9.39 | 0.9.39 |
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