CVE 8.3 HIGH

Constellation allows insecure use of LUKS2 persistent storage partitions_CVE-2025-58356

8.3 / 10
HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Description

Constellation is the first Confidential Kubernetes. The Constellation CVM image uses LUKS2-encrypted volumes for persistent storage. When opening an encrypted storage device, the CVM uses the libcryptsetup function crypt_activate_by_passhrase. If the VM is successful in opening the partition with the disk encryption key, it treats the volume as confidential. However, due to the unsafe handling of null keyslot algorithms in the cryptsetup 2.8.1, it is possible that the opened volume is not encrypted at all. Cryptsetup prior to version 2.8.1 does not report an error when processing LUKS2-formatted disks that use the cipher_null-ecb algorithm in the keyslot encryption field. This vulnerability is fixed in 2.24.0.

Basic Information

ID CVE-2025-58356
Source GitHub_M
Published Oct 27, 2025 at 19:33
Modified Oct 27, 2025 at 19:44

Affected Product

Vendor edgelesssys
Product constellation
Version < 2.24.0
Affected Versions edgelesssys constellation < 2.24.0

CWE Classification

References

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