{
  "cveId": "CVE-2018-20679",
  "url": "https://patchblox.com/security/cve/CVE-2018-20679",
  "summary": "CVE-2018-20679 is fixed in 6 products on 1 platform, first by busybox 1:1.27.2-2ubuntu3.2, released January 8, 2019. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "busybox: An issue was discovered in BusyBox before 1.30.0",
  "description": "An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.",
  "published": "2019-01-08T16:00:00Z",
  "severity": "Low",
  "epss": 0.07694,
  "epssPercentile": 0.94632,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "busybox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "busybox 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-busybox-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "busybox-initramfs",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "busybox-initramfs 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-busybox-initramfs-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "busybox-static",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "busybox-static 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-busybox-static-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "busybox-syslogd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "busybox-syslogd 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-busybox-syslogd-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "udhcpc",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "udhcpc 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-udhcpc-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "udhcpd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:1.27.2-2ubuntu3.2",
      "fix": "udhcpd 1:1.27.2-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-udhcpd-1-1.27.2-2ubuntu3.2",
      "released": "2019-01-08T16:00:00Z"
    }
  ],
  "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"
  }
}