ubuntu-cve-2021-3567
Vulnerability from osv_ubuntu
Published
2022-03-25 19:15
Modified
2026-04-22 07:39
Summary
Details

A flaw was found in Caribou due to a regression of CVE-2020-25712 fix. An attacker could use this flaw to bypass screen-locking applications that leverage Caribou as an input mechanism. The highest threat from this vulnerability is to system availability.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caribou",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "caribou-antler",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "gir1.2-caribou-1.0",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "libcaribou-common",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "libcaribou-gtk-module",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "libcaribou-gtk3-module",
            "binary_version": "0.4.20-1"
          },
          {
            "binary_name": "libcaribou0",
            "binary_version": "0.4.20-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "caribou",
        "purl": "pkg:deb/ubuntu/caribou@0.4.20-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.18.1-1",
        "0.4.19-1",
        "0.4.20-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "caribou",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "caribou-antler",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "gir1.2-caribou-1.0",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "libcaribou-common",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "libcaribou-gtk-module",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "libcaribou-gtk3-module",
            "binary_version": "0.4.21-5"
          },
          {
            "binary_name": "libcaribou0",
            "binary_version": "0.4.21-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "caribou",
        "purl": "pkg:deb/ubuntu/caribou@0.4.21-5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.21-2",
        "0.4.21-3",
        "0.4.21-4",
        "0.4.21-5"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in Caribou due to a regression of CVE-2020-25712 fix. An attacker could use this flaw to bypass screen-locking applications that leverage Caribou as an input mechanism. The highest threat from this vulnerability is to system availability.",
  "id": "UBUNTU-CVE-2021-3567",
  "modified": "2026-04-22T07:39:47Z",
  "published": "2022-03-25T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3567"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/ubuntu/+source/caribou/+bug/1912060"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/caribou/-/merge_requests/3"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.gnome.org/GNOME/caribou/-/commit/d41c8e44b12222a290eaca16703406b113a630c6"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-3567"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-3567"
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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