Описание
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
A flaw was found in the AMD firmware. This vulnerability allows a malicious hypervisor to overwrite a guest's UMC seed, potentially enabling the reading of memory from a decommissioned guest via improper restriction of write operations.
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 7 | linux-firmware | Not affected | ||
| Red Hat Enterprise Linux 8 | linux-firmware | Not affected | ||
| Red Hat Enterprise Linux 9 | linux-firmware | Not affected | ||
| Red Hat OpenShift Container Platform 4 | rhcos | Not affected |
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Дополнительная информация
Статус:
EPSS
6 Medium
CVSS3
Связанные уязвимости
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
EPSS
6 Medium
CVSS3