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CVE-2020-14394

Опубликовано: 15 дек. 2020
Источник: redhat
CVSS3: 3.2
EPSS Низкий

Описание

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

Отчет

This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 7. Red Hat Enterprise Linux 7 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5kvmOut of support scope
Red Hat Enterprise Linux 5xenOut of support scope
Red Hat Enterprise Linux 6qemu-kvmOut of support scope
Red Hat Enterprise Linux 7qemu-kvmOut of support scope
Red Hat Enterprise Linux 7qemu-kvm-maOut of support scope
Red Hat Enterprise Linux 7qemu-kvm-rhevOut of support scope
Red Hat Enterprise Linux 8virt:rhel/qemu-kvmFix deferred
Red Hat Enterprise Linux 8 Advanced Virtualizationvirt:8.2/qemu-kvmFix deferred
Red Hat Enterprise Linux 8 Advanced Virtualizationvirt:8.3/qemu-kvmFix deferred
Red Hat Enterprise Linux 9qemu-kvmFix deferred

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Дополнительная информация

Статус:

Low
Дефект:
CWE-835
https://bugzilla.redhat.com/show_bug.cgi?id=1908004QEMU: infinite loop in xhci_ring_chain_length() in hw/usb/hcd-xhci.c

EPSS

Процентиль: 0%
0.00007
Низкий

3.2 Low

CVSS3

Связанные уязвимости

CVSS3: 3.2
ubuntu
почти 3 года назад

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS3: 3.2
nvd
почти 3 года назад

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS3: 3.2
debian
почти 3 года назад

An infinite loop flaw was found in the USB xHCI controller emulation o ...

CVSS3: 3.2
github
почти 3 года назад

An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. This flaw allows a privileged guest user to hang the QEMU process on the host, resulting in a denial of service.

CVSS3: 3.2
fstec
почти 3 года назад

Уязвимость эмулятора аппаратного обеспечения QEMU, связанная с циклом с недостижимым условием выхода, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 0%
0.00007
Низкий

3.2 Low

CVSS3