ubuntu-cve-2019-6473
Vulnerability from osv_ubuntu
Published
2019-08-28 00:00
Modified
2026-04-22 07:38
Summary
Details

An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kea-admin",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-common",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp-ddns-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp4-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp6-server",
            "binary_version": "1.0.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "isc-kea",
        "purl": "pkg:deb/ubuntu/isc-kea@1.0.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0-1",
        "1.0.0-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "kea-admin",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-common",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp-ddns-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp4-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "kea-dhcp6-server",
            "binary_version": "1.1.0-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "isc-kea",
        "purl": "pkg:deb/ubuntu/isc-kea@1.1.0-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0-1",
        "1.1.0-1build1",
        "1.1.0-1build2"
      ]
    }
  ],
  "aliases": [],
  "details": "An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.",
  "id": "UBUNTU-CVE-2019-6473",
  "modified": "2026-04-22T07:38:53Z",
  "published": "2019-08-28T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-6473"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-6473"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7759-1"
    }
  ],
  "related": [
    "USN-7759-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-6473"
  ]
}



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