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Test ID:1.3.6.1.4.1.25623.1.0.845242
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-5286-1)
Summary:The remote host is missing an update for the 'cryptsetup' package(s) announced via the USN-5286-1 advisory.
Description:Summary:
The remote host is missing an update for the 'cryptsetup' package(s) announced via the USN-5286-1 advisory.

Vulnerability Insight:
Milan Broz discovered that cryptsetup incorrectly handled LUKS2
reencryption recovery. An attacker with physical access to modify the
encrypted device header may trigger the device to be unencrypted the next
time it is mounted by the user.

On Ubuntu 20.04 LTS, this issue was fixed by disabling the online
reencryption feature.

Affected Software/OS:
'cryptsetup' package(s) on Ubuntu 20.04, Ubuntu 21.10.

Solution:
Please install the updated package(s).

CVSS Score:
4.9

CVSS Vector:
AV:L/AC:L/Au:N/C:N/I:C/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-4122
https://access.redhat.com/security/cve/CVE-2021-4122
https://bugzilla.redhat.com/show_bug.cgi?id=2031859
https://bugzilla.redhat.com/show_bug.cgi?id=2032401
https://gitlab.com/cryptsetup/cryptsetup/-/commit/0113ac2d889c5322659ad0596d4cfc6da53e356c
https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.4/v2.4.3-ReleaseNotes
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