ubuntu-cve-2022-50237
Vulnerability from osv_ubuntu
Published
2025-07-28 02:15
Modified
2026-05-20 15:00
Summary
Details

The ed25519-dalek crate before 2 for Rust allows a double public key signing function oracle attack. The Keypair implementation leads to a simple computation for extracting a private key.

Severity
5.9 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-curve25519-dalek-derive-dev",
            "binary_version": "0.1.1+4.1.3+20240618+dfsg-9"
          },
          {
            "binary_name": "librust-curve25519-dalek-dev",
            "binary_version": "4.1.3+4.1.3+20240618+dfsg-9"
          },
          {
            "binary_name": "librust-ed25519-dalek-dev",
            "binary_version": "2.1.1+4.1.3+20240618+dfsg-9"
          },
          {
            "binary_name": "librust-x25519-dalek-dev",
            "binary_version": "2.0.1+4.1.3+20240618+dfsg-9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rust-curve25519-dalek",
        "purl": "pkg:deb/ubuntu/rust-curve25519-dalek@4.1.3+20240618+dfsg-9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1.3+20240618+dfsg-9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "librust-curve25519-dalek-derive-dev",
            "binary_version": "0.1.1+4.2.0+dfsg-1build1"
          },
          {
            "binary_name": "librust-curve25519-dalek-dev",
            "binary_version": "4.2.0+4.2.0+dfsg-1build1"
          },
          {
            "binary_name": "librust-ed25519-dalek-dev",
            "binary_version": "2.2.0+4.2.0+dfsg-1build1"
          },
          {
            "binary_name": "librust-x25519-dalek-dev",
            "binary_version": "2.0.1+4.2.0+dfsg-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rust-curve25519-dalek",
        "purl": "pkg:deb/ubuntu/rust-curve25519-dalek@4.2.0+dfsg-1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.1.3+20240618+dfsg-9",
        "4.2.0+dfsg-1",
        "4.2.0+dfsg-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "The ed25519-dalek crate before 2 for Rust allows a double public key signing function oracle attack. The Keypair implementation leads to a simple computation for extracting a private key.",
  "id": "UBUNTU-CVE-2022-50237",
  "modified": "2026-05-20T15:00:12Z",
  "published": "2025-07-28T02:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-50237"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-50237"
    },
    {
      "type": "REPORT",
      "url": "https://crates.io/crates/ed25519-dalek"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/MystenLabs/ed25519-unsafe-libs"
    },
    {
      "type": "REPORT",
      "url": "https://rustsec.org/advisories/RUSTSEC-2022-0093.html"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-50237"
  ]
}



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Detection rules are retrieved from Rulezet.