Privilege Escalation via Incorrect Firmware Control Flow in Intel Xeon Processors

Always-incorrect control flow implementation in some firmware for some Intel(R) Xeon(R) processors may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.

Denial of Service via Ring 3 Race Condition in 3rd Gen Intel Xeon Scalable Processors

Hardware logic contains race conditions for some 3rd Gen Intel(R) Xeon(R) Scalable Processors within Ring 3: unprivileged software may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present with special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.

hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions

Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

Unchecked return value in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

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

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

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

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

Out of bounds write in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable 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 local access.

Insufficient input validation in system firmware for Intel(R) Xeon(R) Scalable Processors, Intel(R) Xeon(R) Processors D Family, Intel(R) Xeon(R) Processors E5 v4 Family, Intel(R) Xeon(R) Processors E7 v4 Family and Intel(R) Atom(R) processor C Series may allow a privileged user to potentially enable escalation of privilege, denial of service and/or information disclosure via local access.

Insufficient access control in system firmware for Intel(R) Xeon(R) Scalable Processors, 2nd Generation Intel(R) Xeon(R) Scalable Processors and Intel(R) Xeon(R) Processors D Family may allow a privileged user to potentially enable escalation of privilege, denial of service and/or information disclosure via local access.

kernel: improper input validation in the BIOS firmware

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

kernel: insufficient control flow management in the BIOS firmware

Insufficient control flow management in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

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

Insufficient control flow management in the firmware for some Intel(R) Processors may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Intel TDX Modules Uncaught Exception Leading to Denial of Service

Uncaught exception for some Intel(R) TDX modules within Ring 0: Trust Domain may allow a denial of service. System software adversary with a privileged user combined with a high complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (high) impacts.

Insecure storage of sensitive information in the Intel(R) TDX module for some Intel(R) platform within Ring 0: Trust Domain may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.

Improper Authentication in Intel TDX Enables Local Privilege Escalation

Improper authentication in the Intel(R) TDX module for some Intel(R) platforms within Ring 0: Trust Domain may allow an information disclosure and escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts.

Firmware Access Control Flaw Enabling Local Privilege Escalation on Intel Xeon Processors

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.