{
  "cveId": "CVE-2019-6470",
  "url": "https://patchblox.com/security/cve/CVE-2019-6470",
  "summary": "CVE-2019-6470 is fixed in 11 products on 1 platform, first by isc-dhcp-client 4.3.5-3ubuntu7.1, released May 2, 2019. It is not reported as exploited. Patch Radar priority: High.",
  "title": "dhcp-client: The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get t...",
  "description": "The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network.\n\nSecurity Fix(es):\n\n* dhcp: double-deletion of the released addresses in the dhcpv6 code leading to crash and possible DoS (CVE-2019-6470)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.",
  "published": "2019-05-02T17:00:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "epss": 0.08813,
  "epssPercentile": 0.95215,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "dhcp-client",
      "release": "RHEL 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "RHSA-2019:3525",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3525",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-client",
      "release": "ol 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "ELSA-2019-3525",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3525",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-common",
      "release": "RHEL 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "RHSA-2019:3525",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3525",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-common",
      "release": "ol 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "ELSA-2019-3525",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3525",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-libs",
      "release": "RHEL 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "RHSA-2019:3525",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3525",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-libs",
      "release": "ol 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "ELSA-2019-3525",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3525",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-relay",
      "release": "RHEL 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "RHSA-2019:3525",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3525",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-relay",
      "release": "ol 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "ELSA-2019-3525",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3525",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-server",
      "release": "RHEL 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "RHSA-2019:3525",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3525",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "dhcp-server",
      "release": "ol 8",
      "fixedVersion": "12:4.3.6-34.el8",
      "fix": "ELSA-2019-3525",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3525",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-client",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-client 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-client-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-client-ddns",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-client-ddns 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-client-ddns-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-common 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-common-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-relay",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-relay 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-relay-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-server",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-server 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-server-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "isc-dhcp-server-ldap",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.3.5-3ubuntu7.1",
      "fix": "isc-dhcp-server-ldap 4.3.5-3ubuntu7.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-isc-dhcp-server-ldap-4.3.5-3ubuntu7.1",
      "released": "2019-05-02T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}