vuln-ubuntu/data/osv/cve/2021/UBUNTU-CVE-2021-4239.json

{
  "schema_version": "1.7.0",
  "id": "UBUNTU-CVE-2021-4239",
  "details": "The Noise protocol implementation suffers from weakened cryptographic security after encrypting 2^64 messages, and a potential denial of service attack. After 2^64 (~18.4 quintillion) messages are encrypted with the Encrypt function, the nonce counter will wrap around, causing multiple messages to be encrypted with the same key and nonce. In a separate issue, the Decrypt function increments the nonce state even when it fails to decrypt a message. If an attacker can provide an invalid input to the Decrypt function, this will cause the nonce state to desynchronize between the peers, resulting in a failure to encrypt all subsequent messages.",
  "aliases": [],
  "upstream": [
    "CVE-2021-4239"
  ],
  "related": [],
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
    },
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
    },
    {
      "type": "Ubuntu",
      "score": "medium"
    }
  ],
  "published": "2022-12-27T22:15:00Z",
  "modified": "2026-10-17T09:08:06Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "golang-github-flynn-noise",
        "purl": "pkg:deb/ubuntu/golang-github-flynn-noise@1.0.0-2?arch=source&distro=jammy"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.0.0-2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-flynn-noise-dev",
            "binary_version": "1.0.0-2"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "golang-github-flynn-noise",
        "purl": "pkg:deb/ubuntu/golang-github-flynn-noise@1.0.0-2?arch=source&distro=noble"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.0.0-2"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-flynn-noise-dev",
            "binary_version": "1.0.0-2"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "golang-github-flynn-noise",
        "purl": "pkg:deb/ubuntu/golang-github-flynn-noise@1.1.0-1?arch=source&distro=questing"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.1.0-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-flynn-noise-dev",
            "binary_version": "1.1.0-1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "golang-github-flynn-noise",
        "purl": "pkg:deb/ubuntu/golang-github-flynn-noise@1.1.0-1?arch=source&distro=stonking"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.1.0-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-flynn-noise-dev",
            "binary_version": "1.1.0-1"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "golang-github-flynn-noise",
        "purl": "pkg:deb/ubuntu/golang-github-flynn-noise@1.1.0-1?arch=source&distro=resolute"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "versions": [
        "1.1.0-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-flynn-noise-dev",
            "binary_version": "1.1.0-1"
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-4239"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/flynn/noise/pull/44"
    },
    {
      "type": "REPORT",
      "url": "https://pkg.go.dev/vuln/GO-2022-0425"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-4239"
    }
  ]
}