{"id":"UBUNTU-CVE-2021-3567","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.","modified":"2026-04-22T12:56:43.536411Z","published":"2022-03-25T19:15:00Z","upstream":["CVE-2021-3567"],"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"}],"affected":[{"package":{"name":"caribou","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/caribou@0.4.20-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.18.1-1","0.4.19-1","0.4.20-1"],"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_version":"0.4.20-1","binary_name":"libcaribou-common"},{"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3567.json"}},{"package":{"name":"caribou","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/caribou@0.4.21-5?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.21-2","0.4.21-3","0.4.21-4","0.4.21-5"],"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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3567.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}