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                {
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          {
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      "versions": [
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        "4.3.1-5ubuntu4",
        "4.3.1-5ubuntu5",
        "4.3.3-5ubuntu1",
        "4.3.3-5ubuntu2",
        "4.3.3-5ubuntu4",
        "4.3.3-5ubuntu5",
        "4.3.3-5ubuntu7",
        "4.3.3-5ubuntu8",
        "4.3.3-5ubuntu9",
        "4.3.3-5ubuntu10",
        "4.3.3-5ubuntu11",
        "4.3.3-5ubuntu12",
        "4.3.3-5ubuntu12.1",
        "4.3.3-5ubuntu12.3",
        "4.3.3-5ubuntu12.4",
        "4.3.3-5ubuntu12.6",
        "4.3.3-5ubuntu12.7"
      ]
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  ],
  "aliases": [],
  "details": "Konstantin Orekhov discovered that the DHCP server incorrectly handled a\nlarge number of concurrent TCP sessions. A remote attacker could possibly\nuse this issue to cause a denial of service. This issue only affected\nUbuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2774)\n\nIt was discovered that the DHCP server incorrectly handled socket\ndescriptors. A remote attacker could possibly use this issue to cause a\ndenial of service. (CVE-2017-3144)\n\nFelix Wilhelm discovered that the DHCP client incorrectly handled certain\nmalformed responses. A remote attacker could use this issue to cause the\nDHCP client to crash, resulting in a denial of service, or possibly execute\narbitrary code. In the default installation, attackers would be isolated by\nthe dhclient AppArmor profile. (CVE-2018-5732)\n\nFelix Wilhelm discovered that the DHCP server incorrectly handled reference\ncounting. A remote attacker could possibly use this issue to cause the DHCP\nserver to crash, resulting in a denial of service. (CVE-2018-5733)\n",
  "id": "USN-3586-1",
  "modified": "2026-04-22T07:36:35Z",
  "published": "2018-03-01T17:47:25Z",
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    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3586-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-2774"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-3144"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-5732"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-5733"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "isc-dhcp vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2016-2774",
    "UBUNTU-CVE-2017-3144",
    "UBUNTU-CVE-2018-5732",
    "UBUNTU-CVE-2018-5733"
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}