CVE-2020-36843

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Source
https://cve.org/CVERecord?id=CVE-2020-36843
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36843.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-36843
Aliases
Downstream
AZL (1)
CGA (70)
CLSA (1)
DEBIAN (1)
ECHO (1)
MINI (6)
OESA (1)
openSUSE (2)
SUSE (2)
UBUNTU (1)
Related
openSUSE (2)
SUSE (2)
Published
2025-03-13T06:15:34Z
Modified
2026-10-20T10:54:21Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/str4d/ed25519-java

Affected ranges

Type
GIT
Repo
https://github.com/str4d/ed25519-java
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
7c26a6312c2d2e887210930698706103e0f2da7d
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "0.3.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.3.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36843.json"