CVE-2025-11568
MediumCVSS 4.4Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
A data corruption vulnerability in the luksmeta utility for LUKS1 allows overwriting encrypted data by writing excessive metadata. Lack of space validation leads to permanent loss of user data.
Risk Assessment
An attacker with proper permissions can permanently destroy data on LUKS1 encrypted devices, causing irreversible data loss and potential operational downtime for the organization.
Recommendation
Immediately update luksmeta to a version with the metadata space validation fix. Until updated, avoid using luksmeta with LUKS1 devices.
Original NVD description (English source)
A data corruption vulnerability has been identified in the luksmeta utility when used with the LUKS1 disk encryption format. An attacker with the necessary permissions can exploit this flaw by writing a large amount of metadata to an encrypted device. The utility fails to correctly validate the available space, causing the metadata to overwrite and corrupt the user's encrypted data. This action leads to a permanent loss of the stored information. Devices using the LUKS formats other than LUKS1 are not affected by this issue.