Name: CVE-2021-3567: Improper Input Validation
Creator: Rapid7
Published: 2022-03-25T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-3567, CWE-20, CWE-787, CVSS 7.5, EPSS 0.01157

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.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade caribou	Jul 30, 2024	Mar 25, 2022
Redhat_linux	—	No solution exists	Jul 9, 2025	Mar 25, 2022
Suse	—	Upgrade caribouUpgrade caribou-develUpgrade caribou-commonUpgrade caribou-gtk-module-commonUpgrade libcaribou0Upgrade caribou-gtk2-moduleUpgrade caribou-gtk3-module	Jun 11, 2021	Jun 10, 2021
Ubuntu	—	No solution exists	Jun 26, 2025	Mar 25, 2022

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CVSS Details

Covered by Rapid7

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