{
  "cveId": "CVE-2021-4034",
  "url": "https://patchblox.com/security/cve/CVE-2021-4034",
  "summary": "CVE-2021-4034 is fixed in 12 products on 1 platform, first by DSA-5059-1, released January 25, 2022. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on June 27, 2022, with known ransomware use. Patch Radar priority: Patch now.",
  "title": "polkit: The polkit packages provide a component for controlling system-wide privileges",
  "description": "The polkit packages provide a component for controlling system-wide privileges. This component provides a uniform and organized way for non-privileged processes to communicate with privileged ones.\n\nSecurity Fix(es):\n\n* polkit: Local privilege escalation in pkexec due to incorrect handling of argument vector (CVE-2021-4034)\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.",
  "published": "2022-01-25T00:00:00Z",
  "severity": "Important",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.94921,
  "epssPercentile": 0.99861,
  "priority": "Patch now",
  "priorityTier": 1,
  "exploited": true,
  "vendorExploited": false,
  "disclosed": false,
  "kev": {
    "added": "2022-06-27T00:00:00Z",
    "due": "2022-07-18T00:00:00Z",
    "ransomware": true,
    "requiredAction": "Apply updates per vendor instructions."
  },
  "fixes": [
    {
      "platform": "linux",
      "product": "gir1.2-polkit-1.0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.105-20ubuntu0.18.04.6",
      "fix": "gir1.2-polkit-1.0 0.105-20ubuntu0.18.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gir1.2-polkit-1.0-0.105-20ubuntu0.18.04.6",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gir1.2-polkit-1.0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.105-26ubuntu1.2",
      "fix": "gir1.2-polkit-1.0 0.105-26ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gir1.2-polkit-1.0-0.105-26ubuntu1.2",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gir1.2-polkit-1.0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.105-31ubuntu1",
      "fix": "gir1.2-polkit-1.0 0.105-31ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-gir1.2-polkit-1.0-0.105-31ubuntu1",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-agent-1-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.105-20ubuntu0.18.04.6",
      "fix": "libpolkit-agent-1-0 0.105-20ubuntu0.18.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpolkit-agent-1-0-0.105-20ubuntu0.18.04.6",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-agent-1-0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.105-26ubuntu1.2",
      "fix": "libpolkit-agent-1-0 0.105-26ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libpolkit-agent-1-0-0.105-26ubuntu1.2",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-agent-1-0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.105-31ubuntu1",
      "fix": "libpolkit-agent-1-0 0.105-31ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libpolkit-agent-1-0-0.105-31ubuntu1",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-backend-1-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.105-20ubuntu0.18.04.6",
      "fix": "libpolkit-backend-1-0 0.105-20ubuntu0.18.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpolkit-backend-1-0-0.105-20ubuntu0.18.04.6",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-gobject-1-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.105-20ubuntu0.18.04.6",
      "fix": "libpolkit-gobject-1-0 0.105-20ubuntu0.18.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libpolkit-gobject-1-0-0.105-20ubuntu0.18.04.6",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-gobject-1-0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.105-26ubuntu1.2",
      "fix": "libpolkit-gobject-1-0 0.105-26ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libpolkit-gobject-1-0-0.105-26ubuntu1.2",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libpolkit-gobject-1-0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "fix": "libpolkit-gobject-1-0 0.105-31ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libpolkit-gobject-1-0-0.105-31ubuntu1",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "0.105-31\u002Bdeb11u1",
      "fix": "DSA-5059-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5059-1",
      "released": "2022-01-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.105-31.1",
      "fix": "DEBIAN-CVE-2021-4034",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-4034",
      "released": "2022-01-28T20:15:12Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.105-31.1",
      "fix": "DEBIAN-CVE-2021-4034",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-4034",
      "released": "2022-01-28T20:15:12Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Debian 14",
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      "fix": "DEBIAN-CVE-2021-4034",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-4034",
      "released": "2022-01-28T20:15:12Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "fix": "policykit-1 0.105-20ubuntu0.18.04.6",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-policykit-1-0.105-20ubuntu0.18.04.6",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.105-26ubuntu1.2",
      "fix": "policykit-1 0.105-26ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-policykit-1-0.105-26ubuntu1.2",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "policykit-1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
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      "fix": "policykit-1 0.105-31ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-policykit-1-0.105-31ubuntu1",
      "released": "2022-01-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "polkit",
      "release": "RHEL 8",
      "fixedVersion": "0:0.115-13.el8_5.1",
      "fix": "RHSA-2022:0267",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2022-0267",
      "released": "2022-01-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "polkit",
      "release": "almalinux 8",
      "fixedVersion": "0.115-13.el8_5.2",
      "fix": "ALSA-2022:0267",
      "url": "https://patchblox.com/security/fix/linux/alsa-2022-0267",
      "released": "2022-01-25T17:38:41Z"
    },
    {
      "platform": "linux",
      "product": "polkit",
      "release": "amzn 2023",
      "fixedVersion": "0.117-10.amzn2023.0.3",
      "fix": "ALAS2023-2023-026",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-026",
      "released": "2023-02-17T20:43:00Z"
    },
    {
      "platform": "linux",
      "product": "polkit",
      "release": "ol 8",
      "fixedVersion": "0:0.115-13.0.1.el8_5.1",
      "fix": "ELSA-2022-0267",
      "url": "https://patchblox.com/security/fix/linux/elsa-2022-0267",
      "released": "2022-01-25T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "polkit",
      "release": "rocky 8",
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      "fix": "RLSA-2022:0267",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2022-0267",
      "released": "2022-01-25T17:38:41Z"
    },
    {
      "platform": "linux",
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      "fix": "ALAS2023-2023-026",
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      "released": "2023-02-17T20:43:00Z"
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    {
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      "released": "2023-02-17T20:43:00Z"
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    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}