Vulnerability in Cryptsetup Project
CVE-2021-4122
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.
EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
Affected products
- Cryptsetup_project Cryptsetup
- N/a Cryptsetup — versions Fixed in cryptsetup 2.4.3, cryptsetup 2.3.7
Weakness classification (CWE)
References
- secalert@redhat.com (Permissions Required, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-4122?
- CVE-2021-4122 is a medium-severity vulnerability in Cryptsetup Project, classified under Insufficient Verification of Data Authenticity. CVSS score: 4.3/10. Published 2022-08-24.
- How severe is CVE-2021-4122?
- Medium severity. CVSS v3 base score is 4.3 out of 10.