SB2022020871 - Anolis OS update for cryptsetup
Published: February 8, 2022 Updated: March 28, 2025
Security Bulletin ID
SB2022020871
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2021-4122)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a local attacker to escalate privileges on the system.
The vulnerability exists due to improper handling of the LUKS2 reencryption recover. A local attacker with physical access to the medium can send a specially crafted LUKS header and trick cryptsetup into disabling encryption during the recovery of the device.
Remediation
Install update from vendor's website.