Permanent data loss via unchecked metadata size
Published Oct 15, 2025 · Updated Oct 15, 2025
Data corruption in Red Hat luksmeta on LUKS1 devices allows local users with root privileges to overwrite encrypted user data. The find_gap and overlap logic accepts metadata whose aligned end offset exceeds the gap between the LUKS1 header and encrypted payload. Exploitation requires root access and a LUKS1 device; oversized metadata irreversibly corrupts encrypted data, while LUKS2 devices are unaffected.
Summary
What happened
Data corruption in Red Hat luksmeta on LUKS1 devices allows local users with root privileges to overwrite encrypted user data. The find_gap and overlap logic accepts metadata whose aligned end offset exceeds the gap between the LUKS1 header and encrypted payload. Exploitation requires root access and a LUKS1 device; oversized metadata irreversibly corrupts encrypted data, while LUKS2 devices are unaffected.
The record
- CVE
- CVE-2025-11568
- Published
- Oct 15, 2025
- Updated
- Oct 15, 2025
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 10
- Classifications
- CWE-1284, T1565.001
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Oct 15, 2025CVE publishedPublication date reported by the CVE source.
- Oct 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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