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CVE-2020-27821

Опубликовано: 08 дек. 2020
Источник: debian
EPSS Низкий

Описание

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
qemufixed1:5.2+dfsg-3package
qemunot-affectedstretchpackage

Примечания

  • https://bugzilla.redhat.com/show_bug.cgi?id=1902651

  • https://git.qemu.org/?p=qemu.git;a=commit;h=4bfb024bc76973d40a359476dc0291f46e435442

  • Introduced by: https://git.qemu.org/?p=qemu.git;a=commitdiff;h=48564041a73adbbff52834f9edbe3806fceefab7 (v3.0)

EPSS

Процентиль: 4%
0.00022
Низкий

Связанные уязвимости

CVSS3: 6
ubuntu
больше 4 лет назад

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS3: 5.7
redhat
больше 4 лет назад

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS3: 6
nvd
больше 4 лет назад

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS3: 6
msrc
больше 4 лет назад

Описание отсутствует

CVSS3: 6
github
около 3 лет назад

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

EPSS

Процентиль: 4%
0.00022
Низкий