Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return instructions to achieve arbitrary speculative code execution under certain microarchitecture-dependent conditions.

Improper input validation for some Intel(R) Processors may allow an authenticated user to potentially cause a denial of service via local access.

Processor optimization removal or modification of security-critical code for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Sensitive information accessible by physical probing of JTAG interface for some Intel(R) Processors with SGX may allow an unprivileged user to potentially enable information disclosure via physical access.

Hardware allows activation of test or debug logic at runtime for some Intel(R) Trace Hub instances which may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Improper input validation in the firmware for some Intel(R) Processors may allow an authenticated user to potentially enable an escalation of privilege via local access.

Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to potentially enable a denial of service via local access.

Improper initialization in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via physical access.

Improper access control in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via physical access.