ghsa-p53j-g8pw-4w5f
Vulnerability from github
Published
2025-03-13 06:30
Modified
2025-03-13 16:24
Severity ?
VLAI Severity ?
Summary
Ed25519 Signature Malleability in ed25519-java Due to Missing Scalar Range Check
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.
{ "affected": [ { "package": { "ecosystem": "Maven", "name": "net.i2p.crypto:eddsa" }, "ranges": [ { "events": [ { "introduced": "0" }, { "last_affected": "0.3.0" } ], "type": "ECOSYSTEM" } ] }, { "package": { "ecosystem": "Maven", "name": "net.i2p:i2p" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "0.9.39" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2020-36843" ], "database_specific": { "cwe_ids": [ "CWE-347" ], "github_reviewed": true, "github_reviewed_at": "2025-03-13T16:24:28Z", "nvd_published_at": "2025-03-13T06:15:34Z", "severity": "MODERATE" }, "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.", "id": "GHSA-p53j-g8pw-4w5f", "modified": "2025-03-13T16:24:28Z", "published": "2025-03-13T06:30:34Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36843" }, { "type": "WEB", "url": "https://github.com/str4d/ed25519-java/issues/82#issue-727629226" }, { "type": "WEB", "url": "https://github.com/i2p/i2p.i2p/commit/d7d1dcb5399c61cf2916ccc45aa25b0209c88712#diff-658f7b1aa34b58d27796fccdb8b756c72702d64ae44703374960f1cb89a5a5c3" }, { "type": "WEB", "url": "https://eprint.iacr.org/2020/1244" }, { "type": "PACKAGE", "url": "https://github.com/str4d/ed25519-java" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "type": "CVSS_V3" } ], "summary": "Ed25519 Signature Malleability in ed25519-java Due to Missing Scalar Range Check" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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