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CVE-2021-3501

Опубликовано: 13 апр. 2021
Источник: redhat
CVSS3: 7.8
EPSS Низкий

Описание

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

A flaw was found in the Linux kernel. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Отчет

This issue affected Linux kernel versions as shipped with Red Hat Enterprise Linux 8 starting with RHEL-8.4.0 and onward kernel version.

Меры по смягчению последствий

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernel-altNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 8kernel-rtFixedRHSA-2021:216901.06.2021
Red Hat Enterprise Linux 8kpatch-patchFixedRHSA-2021:216501.06.2021
Red Hat Enterprise Linux 8kernelFixedRHSA-2021:216801.06.2021
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8redhat-virtualization-hostFixedRHSA-2021:252222.06.2021

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Дополнительная информация

Статус:

Important
Дефект:
CWE-787
https://bugzilla.redhat.com/show_bug.cgi?id=1950136kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run

EPSS

Процентиль: 32%
0.00377
Низкий

7.8 High

CVSS3

Связанные уязвимости

CVSS3: 7.1
ubuntu
больше 5 лет назад

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

CVSS3: 7.1
nvd
больше 5 лет назад

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

CVSS3: 7.1
msrc
больше 5 лет назад

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata in the KVM API is mapped to an array index which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

CVSS3: 7.1
debian
больше 5 лет назад

A flaw was found in the Linux kernel in versions before 5.12. The valu ...

CVSS3: 7.1
github
больше 4 лет назад

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

EPSS

Процентиль: 32%
0.00377
Низкий

7.8 High

CVSS3