Описание
Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
A microarchitectural timing flaw was found on some Intel processors. A corner case exists where data in-flight during the eviction process can end up in the “fill buffers” and not properly cleared by the MDS mitigations. The fill buffer contents (which were expected to be blank) can be inferred using MDS or TAA style attack methods to allow a local attacker to infer fill buffer values.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | microcode_ctl | Out of support scope | ||
| Red Hat Enterprise Linux 6 | microcode_ctl | Fixed | RHSA-2020:2433 | 09.06.2020 |
| Red Hat Enterprise Linux 6.5 Advanced Update Support | microcode_ctl | Fixed | RHSA-2020:2707 | 23.06.2020 |
| Red Hat Enterprise Linux 6.6 Advanced Update Support | microcode_ctl | Fixed | RHSA-2020:2706 | 23.06.2020 |
| Red Hat Enterprise Linux 7 | microcode_ctl | Fixed | RHSA-2020:2432 | 10.06.2020 |
| Red Hat Enterprise Linux 7 | microcode_ctl | Fixed | RHSA-2021:3028 | 09.08.2021 |
| Red Hat Enterprise Linux 7.2 Advanced Update Support | microcode_ctl | Fixed | RHSA-2020:2679 | 23.06.2020 |
| Red Hat Enterprise Linux 7.2 Advanced Update Support | microcode_ctl | Fixed | RHSA-2021:3323 | 31.08.2021 |
| Red Hat Enterprise Linux 7.3 Advanced Update Support | microcode_ctl | Fixed | RHSA-2020:2680 | 23.06.2020 |
| Red Hat Enterprise Linux 7.3 Advanced Update Support | microcode_ctl | Fixed | RHSA-2021:3322 | 31.08.2021 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Cleanup errors in some data cache evictions for some Intel(R) Processo ...
Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Уязвимость процессоров Intel, вызванная утечкой данных из кэша L1D, позволяющая нарушителю раскрыть защищаемую информацию
EPSS
6.5 Medium
CVSS3