ubuntu-cve-2018-14424
Vulnerability from osv_ubuntu
Published
2018-08-13 00:00
Modified
2026-04-22 07:38
Summary
Details

The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gdm",
            "binary_version": "3.18.3-0ubuntu2.2"
          },
          {
            "binary_name": "gdm3",
            "binary_version": "3.18.3-0ubuntu2.2"
          },
          {
            "binary_name": "gir1.2-gdm-1.0",
            "binary_version": "3.18.3-0ubuntu2.2"
          },
          {
            "binary_name": "libgdm1",
            "binary_version": "3.18.3-0ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "gdm3",
        "purl": "pkg:deb/ubuntu/gdm3@3.18.3-0ubuntu2.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.18.0-2ubuntu1",
        "3.18.0-2ubuntu2",
        "3.18.0-2ubuntu3",
        "3.18.0-2ubuntu4",
        "3.18.2-1ubuntu1",
        "3.18.2-1ubuntu2",
        "3.18.3-0ubuntu1",
        "3.18.3-0ubuntu2",
        "3.18.3-0ubuntu2.1",
        "3.18.3-0ubuntu2.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gdm3",
            "binary_version": "3.28.2-0ubuntu1.4"
          },
          {
            "binary_name": "gir1.2-gdm-1.0",
            "binary_version": "3.28.2-0ubuntu1.4"
          },
          {
            "binary_name": "libgdm1",
            "binary_version": "3.28.2-0ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "gdm3",
        "purl": "pkg:deb/ubuntu/gdm3@3.28.2-0ubuntu1.4?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.28.2-0ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.26.1-3ubuntu2",
        "3.26.1-3ubuntu3",
        "3.26.2.1-0ubuntu1",
        "3.26.2.1-2ubuntu1",
        "3.26.2.1-2ubuntu2",
        "3.27.90-0ubuntu1",
        "3.27.92-0ubuntu1",
        "3.28.0-0ubuntu1",
        "3.28.2-0ubuntu1.2",
        "3.28.2-0ubuntu1.3"
      ]
    }
  ],
  "aliases": [],
  "details": "The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution.",
  "id": "UBUNTU-CVE-2018-14424",
  "modified": "2026-04-22T07:38:41Z",
  "published": "2018-08-13T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-14424"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3737-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-14424"
    }
  ],
  "related": [
    "USN-3737-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-14424"
  ]
}



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