Описание
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest's physical address, potentially reading past the end of the bar space into adjacent pages. This could allow a malicious guest user to crash the QEMU process on the host, causing a denial of service. Spice was found to be affected by the same CVE.
Отчет
The versions of qemu-kvm as shipped with Red Hat Enterprise Linux 9 are not affected by this flaw as they do not include support for QXL display device emulation.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | qemu-kvm | Out of support scope | ||
| Red Hat Enterprise Linux 6 | spice-server | Out of support scope | ||
| Red Hat Enterprise Linux 7 | qemu-kvm | Out of support scope | ||
| Red Hat Enterprise Linux 7 | qemu-kvm-ma | Out of support scope | ||
| Red Hat Enterprise Linux 7 | spice | Out of support scope | ||
| Red Hat Enterprise Linux 8 | spice | Will not fix | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.2/qemu-kvm | Will not fix | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:av/qemu-kvm | Will not fix | ||
| Red Hat Enterprise Linux 9 | qemu-kvm | Not affected | ||
| Red Hat OpenStack Platform 13 (Queens) | qemu-kvm-rhev | Out of support scope |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition.
An out-of-bounds read flaw was found in the QXL display device emulati ...
EPSS
6.5 Medium
CVSS3