{
  "cveId": "CVE-2021-4217",
  "url": "https://patchblox.com/security/cve/CVE-2021-4217",
  "summary": "CVE-2021-4217 is fixed in 3 products on 1 platform, first by unzip 6.0-21ubuntu1.2, released August 24, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "unzip: A flaw was found in unzip",
  "description": "A flaw was found in unzip. The vulnerability occurs due to improper handling of Unicode strings, which can lead to a null pointer dereference. This flaw allows an attacker to input a specially crafted zip file, leading to a crash or code execution.",
  "published": "2022-08-24T09:15:00Z",
  "severity": "Low",
  "epss": 0.00618,
  "epssPercentile": 0.49873,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "unzip",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "6.0-21ubuntu1.2",
      "fix": "unzip 6.0-21ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-unzip-6.0-21ubuntu1.2",
      "released": "2022-08-24T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "6.0-25ubuntu1.1",
      "fix": "unzip 6.0-25ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-unzip-6.0-25ubuntu1.1",
      "released": "2022-08-24T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "6.0-26ubuntu3.1",
      "fix": "unzip 6.0-26ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-unzip-6.0-26ubuntu3.1",
      "released": "2022-08-24T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "6.0-28ubuntu4.1",
      "fix": "unzip 6.0-28ubuntu4.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-unzip-6.0-28ubuntu4.1",
      "released": "2022-08-24T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip",
      "release": "amzn 2023",
      "fixedVersion": "6.0-57.amzn2023.0.2",
      "fix": "ALAS2023-2023-029",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-029",
      "released": "2023-02-17T20:43:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.0-57.amzn2023.0.2",
      "fix": "ALAS2023-2023-029",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-029",
      "released": "2023-02-17T20:43:00Z"
    },
    {
      "platform": "linux",
      "product": "unzip-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "6.0-57.amzn2023.0.2",
      "fix": "ALAS2023-2023-029",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-029",
      "released": "2023-02-17T20:43:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}