Описание
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.
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.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2022:7338 | 02.11.2022 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2022:7337 | 02.11.2022 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2022:7444 | 08.11.2022 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2022:7683 | 08.11.2022 |
| Red Hat Enterprise Linux 8.6 Extended Update Support | kernel | Fixed | RHSA-2023:0440 | 24.01.2023 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2022:8267 | 15.11.2022 |
| Red Hat Enterprise Linux 9 | kernel-rt | Fixed | RHSA-2022:7933 | 15.11.2022 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2022:8267 | 15.11.2022 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | kernel | Fixed | RHSA-2022:8973 | 13.12.2022 |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
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.
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.
Non-transparent sharing of return predictor targets between contexts i ...
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.
Уязвимость функции spectre_v2_select_mitigation() ядра операционной системы Linux, позволяющая нарушителю получить выполнить произвольный код
EPSS
5.5 Medium
CVSS3