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CVE-2021-0145

Опубликовано: 08 фев. 2022
Источник: redhat
CVSS3: 6.5

Описание

Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

A flaw was found in microcode. Fast store forwarding prediction in one domain could be controlled by software previously executed in another domain. Such control helps a malicious program running in user mode (or guest VM) to trigger transient execution gadgets in supervisor mode (or VMM), potentially leading to sensitive data disclosure. Fast store forward prediction is not enabled when SSBD is set. This flaw allows an authenticated user with local access to perform information disclosure via transient execution.

Отчет

Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat owned development processes and QA, documentation) for releasing this content as RHSA. For more information please contact the binary content vendor.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 6microcode_ctlAffected
Red Hat Enterprise Linux 7microcode_ctlAffected
Red Hat Enterprise Linux 8microcode_ctlAffected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-665
https://bugzilla.redhat.com/show_bug.cgi?id=2049531microcode: Fast store forward predictor - Cross Domain Training

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
ubuntu
почти 4 года назад

Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS3: 5.5
nvd
почти 4 года назад

Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS3: 5.5
debian
почти 4 года назад

Improper initialization of shared resources in some Intel(R) Processor ...

CVSS3: 5.5
github
почти 4 года назад

Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

CVSS3: 5.5
fstec
больше 5 лет назад

Уязвимость микрокода процессоров Intel Microcode, связанная с ошибками инициализации памяти, позволяющая нарушителю получить доступ к конфиденциальным данным

6.5 Medium

CVSS3