{
  "cveId": "CVE-2021-27218",
  "url": "https://patchblox.com/security/cve/CVE-2021-27218",
  "summary": "CVE-2021-27218 is fixed in 15 products on 1 platform, first by libglib2.0-0 2.56.4-0ubuntu0.18.04.7, released February 15, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "glib2: GLib provides the core application building blocks for libraries and applications written in C",
  "description": "GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures.\n\nSecurity Fix(es):\n\n* glib: integer overflow in g_byte_array_new_take function when called with a buffer of 4GB or more on a 64-bit platform (CVE-2021-27218)\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": "2021-02-15T09:15:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "epss": 0.0408,
  "epssPercentile": 0.90778,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "glib2",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-devel",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-doc",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-doc",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-fam",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-fam",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-static",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-static",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-tests",
      "release": "RHEL 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "RHSA-2021:3058",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-3058",
      "released": "2021-08-10T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "glib2-tests",
      "release": "ol 8",
      "fixedVersion": "0:2.56.4-10.el8_4.1",
      "fix": "ELSA-2021-3058",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-3058",
      "released": "2021-08-11T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.56.4-0ubuntu0.18.04.7",
      "fix": "libglib2.0-0 2.56.4-0ubuntu0.18.04.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libglib2.0-0-2.56.4-0ubuntu0.18.04.7",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.64.6-1~ubuntu20.04.2",
      "fix": "libglib2.0-0 2.64.6-1~ubuntu20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libglib2.0-0-2.64.6-1-ubuntu20.04.2",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-bin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.56.4-0ubuntu0.18.04.7",
      "fix": "libglib2.0-bin 2.56.4-0ubuntu0.18.04.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libglib2.0-bin-2.56.4-0ubuntu0.18.04.7",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-bin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.64.6-1~ubuntu20.04.2",
      "fix": "libglib2.0-bin 2.64.6-1~ubuntu20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libglib2.0-bin-2.64.6-1-ubuntu20.04.2",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-data",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.56.4-0ubuntu0.18.04.7",
      "fix": "libglib2.0-data 2.56.4-0ubuntu0.18.04.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libglib2.0-data-2.56.4-0ubuntu0.18.04.7",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-data",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.64.6-1~ubuntu20.04.2",
      "fix": "libglib2.0-data 2.64.6-1~ubuntu20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libglib2.0-data-2.64.6-1-ubuntu20.04.2",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-dev-bin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "2.56.4-0ubuntu0.18.04.7",
      "fix": "libglib2.0-dev-bin 2.56.4-0ubuntu0.18.04.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libglib2.0-dev-bin-2.56.4-0ubuntu0.18.04.7",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-dev-bin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.64.6-1~ubuntu20.04.2",
      "fix": "libglib2.0-dev-bin 2.64.6-1~ubuntu20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libglib2.0-dev-bin-2.64.6-1-ubuntu20.04.2",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-tests",
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      "fix": "libglib2.0-tests 2.56.4-0ubuntu0.18.04.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libglib2.0-tests-2.56.4-0ubuntu0.18.04.7",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libglib2.0-tests",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "2.64.6-1~ubuntu20.04.2",
      "fix": "libglib2.0-tests 2.64.6-1~ubuntu20.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libglib2.0-tests-2.64.6-1-ubuntu20.04.2",
      "released": "2021-02-15T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mingw32-glib2",
      "release": "RHEL 8",
      "fixedVersion": "0:2.66.7-2.el8",
      "fix": "RHSA-2021:4526",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4526",
      "released": "2021-11-09T00:00:00Z"
    },
    {
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      "fix": "RHSA-2021:4526",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4526",
      "released": "2021-11-09T00:00:00Z"
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    {
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      "release": "RHEL 8",
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      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4526",
      "released": "2021-11-09T00:00:00Z"
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    {
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      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4526",
      "released": "2021-11-09T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}