{"id":"CVE-2025-58356","sourceIdentifier":"security-advisories@github.com","published":"2025-10-27T20:15:53.480","lastModified":"2026-10-08T11:10:00.250","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Constellation es el primer Kubernetes Confidencial. La imagen CVM de Constellation utiliza volúmenes cifrados con LUKS2 para almacenamiento persistente. Al abrir un dispositivo de almacenamiento cifrado, la CVM utiliza la función de libcryptsetup crypt_activate_by_passhrase. Si la VM logra abrir la partición con la clave de cifrado de disco, trata el volumen como confidencial. Sin embargo, debido al manejo inseguro de algoritmos de keyslot nulos en cryptsetup 2.8.1, es posible que el volumen abierto no esté cifrado en absoluto. Cryptsetup anterior a la versión 2.8.1 no informa un error al procesar discos formateados con LUKS2 que utilizan el algoritmo cipher_null-ecb en el campo de cifrado de keyslot. Esta vulnerabilidad está corregida en 2.24.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"edgelesssys","product":"constellation","versions":[{"version":"< 2.24.0","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.3,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-10-27T19:44:26.781817Z","id":"CVE-2025-58356","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-347"}]}],"references":[{"url":"https://github.com/edgelesssys/constellation/pull/3927","source":"security-advisories@github.com"},{"url":"https://github.com/edgelesssys/constellation/releases/tag/v2.24.0","source":"security-advisories@github.com"},{"url":"https://github.com/edgelesssys/constellation/security/advisories/GHSA-hq76-6gh2-5g4q","source":"security-advisories@github.com"},{"url":"https://blog.trailofbits.com/2025/10/30/vulnerabilities-in-luks2-disk-encryption-for-confidential-vms/","source":"af854a3a-2127-422b-91ae-364da2661108"}]}