ubuntu-cve-2021-3580
Vulnerability from osv_ubuntu
Published
2021-06-10 00:00
Modified
2026-04-22 07:39
Summary
Details

A flaw was found in the way nettle's RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libhogweed2",
            "binary_version": "2.7.1-1ubuntu0.2"
          },
          {
            "binary_name": "libnettle4",
            "binary_version": "2.7.1-1ubuntu0.2"
          },
          {
            "binary_name": "nettle-bin",
            "binary_version": "2.7.1-1ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "nettle",
        "purl": "pkg:deb/ubuntu/nettle@2.7.1-1ubuntu0.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.1-1",
        "2.7.1-1ubuntu0.1",
        "2.7.1-1ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libhogweed4",
            "binary_version": "3.2-1ubuntu0.16.04.2"
          },
          {
            "binary_name": "libnettle6",
            "binary_version": "3.2-1ubuntu0.16.04.2"
          },
          {
            "binary_name": "nettle-bin",
            "binary_version": "3.2-1ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nettle",
        "purl": "pkg:deb/ubuntu/nettle@3.2-1ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.1-4",
        "3.2-1",
        "3.2-1ubuntu0.16.04.1",
        "3.2-1ubuntu0.16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libhogweed4",
            "binary_version": "3.4.1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "libnettle6",
            "binary_version": "3.4.1-0ubuntu0.18.04.1"
          },
          {
            "binary_name": "nettle-bin",
            "binary_version": "3.4.1-0ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nettle",
        "purl": "pkg:deb/ubuntu/nettle@3.4.1-0ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.1-0ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.3-2",
        "3.4-1",
        "3.4-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libhogweed5",
            "binary_version": "3.5.1+really3.5.1-2ubuntu0.2"
          },
          {
            "binary_name": "libnettle7",
            "binary_version": "3.5.1+really3.5.1-2ubuntu0.2"
          },
          {
            "binary_name": "nettle-bin",
            "binary_version": "3.5.1+really3.5.1-2ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nettle",
        "purl": "pkg:deb/ubuntu/nettle@3.5.1+really3.5.1-2ubuntu0.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.5.1+really3.5.1-2ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.1-1",
        "3.5.1+really3.5.1-2",
        "3.5.1+really3.5.1-2ubuntu0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in the way nettle\u0027s RSA decryption functions handled specially crafted ciphertext. An attacker could use this flaw to provide a manipulated ciphertext leading to application crash and denial of service.",
  "id": "UBUNTU-CVE-2021-3580",
  "modified": "2026-04-22T07:39:47Z",
  "published": "2021-06-10T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3580"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4990-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3580"
    }
  ],
  "related": [
    "USN-4990-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3580"
  ]
}



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