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CVE-2020-36843

Published: Mar 13, 2025Updated: Mar 13, 2025 Sources: CVE List NVD GHSA BDUCWE-347
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.1%
Top 96.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:CC:NI:LA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-347

Affected Products

net.i2p.crypto:eddsaMavenOSS Libraries
net.i2p:i2pMavenOSS Libraries
EdDSA-JavaСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
GradleGradle Inc.
Mixed
DevTools & CI / build-test-tools
ed25519-javastr4d
Library
OSS Libraries / generic-library
mavenpackage-ecosystemOSS Libraries
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
gradle inc.commercialDevTools & CIaka gradle
str4doss-projectOSS Librariesaka ed25519-java

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://eprint.iacr.org/2020/1244
eprint.iacr.org
https://github.com/str4d/ed25519-java/issues/82#issue-727629226
github.com
https://nvd.nist.gov/vuln/detail/CVE-2020-36843
nvd.nist.gov
and 2 more references View all →

Timeline

Published
Mar 13, 2025
Last Updated
Mar 13, 2025

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