{"id":"DEBIAN-CVE-2021-4122","details":"It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.","modified":"2026-09-01T20:04:32.996882068Z","published":"2022-08-24T16:15:09.427Z","upstream":["CVE-2021-4122"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-4122"}],"affected":[{"package":{"name":"cryptsetup","ecosystem":"Debian:12","purl":"pkg:deb/debian/cryptsetup?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-4122.json"}},{"package":{"name":"cryptsetup","ecosystem":"Debian:13","purl":"pkg:deb/debian/cryptsetup?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-4122.json"}},{"package":{"name":"cryptsetup","ecosystem":"Debian:14","purl":"pkg:deb/debian/cryptsetup?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.4.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-4122.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"}]}