Описание
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
Отчет
The qemu-kvm package as shipped with Red Hat Enterprise Linux is not affected by this flaw as it does not include support for NVMe device emulation.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 7 | qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 7 | qemu-kvm-ma | Not affected | ||
| Red Hat Enterprise Linux 8 | virt:rhel/qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.2/qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:av/qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux 9 | qemu-kvm | Not affected | ||
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Not affected | ||
| Red Hat OpenStack Platform 13 (Queens) | qemu-kvm-rhev | Not affected |
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Дополнительная информация
Статус:
EPSS
8.2 High
CVSS3
Связанные уязвимости
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
A DMA reentrancy issue was found in the NVM Express Controller (NVME) ...
A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.
EPSS
8.2 High
CVSS3