QID 354051

a bug in the ima subsystem was discovered which would incorrectly allow kexec to be used when kernel lockdown was enabled (cve-2022-21505) a flaw was found in hw.
Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions. (
( CVE-2022-23816) a flaw was found in hw.
Aliases in the branch predictor may cause some amd processors to predict the wrong branch type, potentially leading to information disclosure. (
( CVE-2022-23825) a flaw was found in hw.
In certain processors with intels enhanced indirect branch restricted speculation (eibrs) capabilities, soon after vm exit or ibpb command event, the linear address following the most recent near call instruction prior to a vm exit may be used as the return stack buffer (rsb) prediction. (
( CVE-2022-26373) a flaw was found in hw.
The unprotected alternative channel of return branch target prediction in some intel(r) processors may allow an authorized user to enable information disclosure via local access. (
( CVE-2022-28693) a flaw was found in hw.
( CVE-2022-29900) a flaw was found in hw.
Non-transparent sharing of branch predictor targets between contexts in some intel(r) processors may potentially allow an authorized user to enable information disclosure via local access.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.