ubuntu-cve-2019-3820
Vulnerability from osv_ubuntu
Published
2019-02-06 00:00
Modified
2025-09-08 16:45
Summary
Details

It was discovered that the gnome-shell lock screen since version 3.15.91 did not properly restrict all contextual actions. An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts, and potentially other actions.

Severity
4.3 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.8 (Medium)
CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
4.3 (Medium)
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "gnome-shell",
            "binary_version": "3.18.5-0ubuntu0.3+esm1"
          },
          {
            "binary_name": "gnome-shell-common",
            "binary_version": "3.18.5-0ubuntu0.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "gnome-shell",
        "purl": "pkg:deb/ubuntu/gnome-shell@3.18.5-0ubuntu0.3+esm1?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.18.5-0ubuntu0.3+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.16.4-0ubuntu1",
        "3.18.1-1ubuntu1",
        "3.18.2-0ubuntu1",
        "3.18.2-0ubuntu2",
        "3.18.3-3ubuntu1",
        "3.18.4-0ubuntu1",
        "3.18.4-0ubuntu2",
        "3.18.4-0ubuntu3",
        "3.18.5-0ubuntu0.1",
        "3.18.5-0ubuntu0.2",
        "3.18.5-0ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gnome-shell",
            "binary_version": "3.28.3+git20190124-0ubuntu18.04.2"
          },
          {
            "binary_name": "gnome-shell-common",
            "binary_version": "3.28.3+git20190124-0ubuntu18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "gnome-shell",
        "purl": "pkg:deb/ubuntu/gnome-shell@3.28.3+git20190124-0ubuntu18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.28.3+git20190124-0ubuntu18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.26.1-0ubuntu4",
        "3.26.1-0ubuntu5",
        "3.26.1-0ubuntu6",
        "3.26.2-0ubuntu1",
        "3.26.2-0ubuntu2",
        "3.26.2-0ubuntu3",
        "3.27.91-0ubuntu1",
        "3.27.92-0ubuntu1",
        "3.28.0-0ubuntu1",
        "3.28.0-0ubuntu2",
        "3.28.0-0ubuntu3",
        "3.28.0-0ubuntu4",
        "3.28.0-0ubuntu5",
        "3.28.1-0ubuntu1",
        "3.28.1-0ubuntu2",
        "3.28.2-0ubuntu0.18.04.1",
        "3.28.3-0ubuntu0.18.04.2",
        "3.28.3-0ubuntu0.18.04.3",
        "3.28.3-0ubuntu0.18.04.4",
        "3.28.3+git20190124-0ubuntu18.04.1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the gnome-shell lock screen since version 3.15.91 did not properly restrict all contextual actions. An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts, and potentially other actions.",
  "id": "UBUNTU-CVE-2019-3820",
  "modified": "2025-09-08T16:45:14Z",
  "published": "2019-02-06T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-3820"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3966-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-3820"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7052-1"
    }
  ],
  "related": [
    "USN-3966-1",
    "USN-7052-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-3820"
  ]
}



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