Описание
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
A NULL pointer dereference flaw was found in the Floppy disk emulator of QEMU. This issue occurs while transferring data via the fdctrl_read_data() and fdctrl_write_data() routines if the current drive has a null block pointer. This flaw allows a guest user to crash the QEMU process on the host, resulting in a denial of service.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Not affected | ||
| Red Hat Enterprise Linux 5 | xen | Not affected | ||
| 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 7 | qemu-kvm-rhev | Fix deferred | ||
| Red Hat Enterprise Linux 8 | qemu-kvm | Fix deferred | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.2/qemu-kvm | Will not fix | ||
| Red Hat Enterprise Linux 8 Advanced Virtualization | virt:8.3/qemu-kvm | Affected | ||
| Red Hat Enterprise Linux 9 | qemu-kvm | Affected |
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Дополнительная информация
Статус:
3.2 Low
CVSS3
Связанные уязвимости
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer d ...
fdctrl_write_data in hw/block/fdc.c in QEMU 5.0.0 has a NULL pointer dereference via a NULL block pointer for the current drive.
3.2 Low
CVSS3