CVE-2022-26373 – hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions

https://notcve.org/view.php?id=CVE-2022-26373

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. Una compartición no transparente de objetivos de predicción de retorno entre contextos en algunos procesadores Intel(R) puede permitir que un usuario autorizado permita potencialmente la divulgación de información por medio de acceso local. A flaw was found in hw. In certain processors with Intel's 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. • https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html https://security.netapp.com/advisory/ntap-20221007-0005 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00706.html https://access.redhat.com/security/cve/CVE-2022-26373 https://bugzilla.redhat.com/show_bug.cgi?id=2115065 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •