Intel R Software Guard Extensions Data Center Attestation Primitives
Monthly
Intel Software Guard Extensions Data Center Attestation Primitives (SGX DCAP), operating at Ring 0 kernel privilege level, omits security-relevant information during attestation operations, enabling a privileged local attacker under high-complexity conditions to cause denial of service and high-integrity data alteration on downstream systems relying on attestation output. The SI:H subsequent-system integrity impact is the critical concern: systems that consume SGX attestation results - cloud orchestrators, confidential VM managers, or trust brokers - may accept manipulated evidence, undermining the core trust guarantees of confidential computing infrastructure. No public exploit code or CISA KEV listing exists at time of analysis, and the PR:H and AC:H prerequisites substantially constrain the realistic attacker pool.
Intel Software Guard Extensions Data Center Attestation Primitives (SGX DCAP), operating at Ring 0 kernel privilege level, omits security-relevant information during attestation operations, enabling a privileged local attacker under high-complexity conditions to cause denial of service and high-integrity data alteration on downstream systems relying on attestation output. The SI:H subsequent-system integrity impact is the critical concern: systems that consume SGX attestation results - cloud orchestrators, confidential VM managers, or trust brokers - may accept manipulated evidence, undermining the core trust guarantees of confidential computing infrastructure. No public exploit code or CISA KEV listing exists at time of analysis, and the PR:H and AC:H prerequisites substantially constrain the realistic attacker pool.