ubuntu-cve-2019-25591
Vulnerability from osv_ubuntu
Published
2026-03-22 14:16
Modified
2026-05-20 14:51
Summary
Details

DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.

Severity
6.2 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.9 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.0~git20170810.0.860d2af1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.0~git20170810.0.860d2af1-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20170810.0.860d2af1-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.0~git20180721.0.2de63ab0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.0~git20180721.0.2de63ab0-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20180721.0.2de63ab0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.0~git20200927.0.6aad832e-2ubuntu0.3+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.0~git20200927.0.6aad832e-2ubuntu0.3+esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20200927.0.6aad832e-2",
        "0.0~git20200927.0.6aad832e-2build1",
        "0.0~git20200927.0.6aad832e-2ubuntu0.1",
        "0.0~git20200927.0.6aad832e-2ubuntu0.2",
        "0.0~git20200927.0.6aad832e-2ubuntu0.3",
        "0.0~git20200927.0.6aad832e-2ubuntu0.3+esm1",
        "0.0~git20200927.0.6aad832e-2ubuntu0.3+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm2?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0~git20230806.0.38ca607c-1build1",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.1",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.2",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.2+esm1",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm1",
        "0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.1.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.1.0-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "dnss",
            "binary_version": "0.1.0-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "dnss",
        "purl": "pkg:deb/ubuntu/dnss@0.1.0-1build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0-1",
        "0.1.0-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.",
  "id": "UBUNTU-CVE-2019-25591",
  "modified": "2026-05-20T14:51:51Z",
  "published": "2026-03-22T14:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-25591"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-25591"
    },
    {
      "type": "REPORT",
      "url": "http://www.nsauditor.com/downloads/dnss_setup.exe"
    },
    {
      "type": "REPORT",
      "url": "https://www.exploit-db.com/exploits/46831"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/dnss-domain-name-search-software-denial-of-service"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-25591"
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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