Описание
Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.
A flaw was found in the Unified Extensible Firmware Interface (UEFI) firmware of certain Intel processors. Insufficient granularity in access controls allows an authenticated local user to access restricted firmware operations. A local attacker can exploit this issue to cause system instability, leading to a Denial of Service (DoS).
Отчет
Moderate impact: Red Hat Enterprise Linux systems using microcode_ctl are affected by insufficient access-control granularity in UEFI firmware on some Intel processors. An authenticated local user may exploit the issue to cause a denial of service. The Red Hat CVSS v3.1 score is 6.5 (AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H), matching the upstream v3.1 score; the upstream CVSS v4 score is also Moderate (6.8) but uses a different metric profile. Red Hat Enterprise Linux 7 and the listed RHEL 8 update streams are affected with an out-of-support resolution. RHEL 9.6 is delegated as affected, with a fix being pursued through the delegated product process. RHEL 10.0 is not affected because the vulnerable code is not present.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | microcode_ctl | Not affected | ||
| Red Hat Enterprise Linux 7 | microcode_ctl | Out of support scope | ||
| Red Hat Enterprise Linux 8 | microcode_ctl | Fixed | RHEA-2025:3114 | 24.03.2025 |
| Red Hat Enterprise Linux 9 | microcode_ctl | Fixed | RHSA-2025:7043 | 13.05.2025 |
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Дополнительная информация
Статус:
6.5 Medium
CVSS3
Связанные уязвимости
Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.
Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.
Insufficient granularity of access control in UEFI firmware in some In ...
Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.
Уязвимость микропрограммного обеспечения UEFI процессоров Intel, позволяющая нарушителю вызвать отказ в обслуживании
6.5 Medium
CVSS3