Описание
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
An uninitialized data structure use flaw was found in the way the set_pixel_format() function sanitized the value of bits_per_pixel. An attacker able to access a guest's VNC console could use this flaw to crash the guest.
Отчет
This issue did not affect the kvm package as shipped with Red Hat Enterprise Linux 5. Future qemu-kvm updates for Red Hat Enterprise Linux 6 and 7 may address this issue.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Not affected | ||
| Red Hat Enterprise Linux 6 | qemu-kvm | Affected | ||
| Red Hat Enterprise Linux 7 | qemu-kvm | Fixed | RHSA-2015:0349 | 05.03.2015 |
| RHEV 3.X Hypervisor and Agents for RHEL-7 | qemu-kvm-rhev | Fixed | RHSA-2015:0624 | 05.03.2015 |
Показывать по
Дополнительная информация
Статус:
EPSS
5.2 Medium
CVSS2
Связанные уязвимости
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
The set_pixel_format function in ui/vnc.c in QEMU allows remote attack ...
The set_pixel_format function in ui/vnc.c in QEMU allows remote attackers to cause a denial of service (crash) via a small bytes_per_pixel value.
ELSA-2015-0349: qemu-kvm security, bug fix, and enhancement update (IMPORTANT)
EPSS
5.2 Medium
CVSS2