Описание
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
An out-of-bounds read access issue was found in the VGA emulator of QEMU. It could occur in vga_draw_text routine, while updating display area for a vnc client. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Will not fix | ||
| Red Hat Enterprise Linux 5 | xen | Will not fix | ||
| Red Hat Enterprise Linux 7 | qemu-guest-agent | Not affected | ||
| Red Hat Enterprise Linux 7 | qemu-kvm | Affected | ||
| Red Hat Enterprise Linux 8 | qemu-kvm | Not affected | ||
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | qemu-kvm-rhev | Will not fix | ||
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | qemu-kvm-rhev | Will not fix | ||
| Red Hat Enterprise Linux 6 | qemu-kvm | Fixed | RHSA-2018:2162 | 10.07.2018 |
| Red Hat Enterprise Linux 7 | qemu-kvm | Fixed | RHSA-2018:0816 | 10.04.2018 |
| Red Hat OpenStack Platform 10.0 (Newton) | qemu-kvm-rhev | Fixed | RHSA-2018:1113 | 11.04.2018 |
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Дополнительная информация
Статус:
3 Low
CVSS3
2.3 Low
CVSS2
Связанные уязвимости
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
The vga_draw_text function in Qemu allows local OS guest privileged us ...
The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.
Уязвимость функции vga_draw_text эмулятора аппаратного обеспечения QEMU, позволяющая нарушителю вызвать отказ в обслуживании
3 Low
CVSS3
2.3 Low
CVSS2