{
  "cveId": "CVE-2018-1100",
  "url": "https://patchblox.com/security/cve/CVE-2018-1100",
  "summary": "CVE-2018-1100 is fixed in 3 products on 1 platform, first by zsh 5.4.2-3ubuntu3.1, released September 4, 2018. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "zsh: zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function",
  "description": "zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.",
  "published": "2018-04-10T17:00:00Z",
  "severity": "Low",
  "epss": 0.00532,
  "epssPercentile": 0.45155,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "zsh",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.4.2-3ubuntu3.1",
      "fix": "zsh 5.4.2-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-zsh-5.4.2-3ubuntu3.1",
      "released": "2018-09-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "zsh-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.4.2-3ubuntu3.1",
      "fix": "zsh-common 5.4.2-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-zsh-common-5.4.2-3ubuntu3.1",
      "released": "2018-09-04T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "zsh-static",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "5.4.2-3ubuntu3.1",
      "fix": "zsh-static 5.4.2-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-zsh-static-5.4.2-3ubuntu3.1",
      "released": "2018-09-04T17:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T06:34:28Z"
}