Описание
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
A flaw was found in the way the Linux kernel's vhost driver treated userspace provided log file descriptor when processing the VHOST_SET_LOG_FD ioctl command. The file descriptor was never released and continued to consume kernel memory. A privileged local user with access to the /dev/vhost-net files could use this flaw to create a denial-of-service attack.
Отчет
This issue does not affect the Linux kernels as shipped with Red Hat Enterprise Linux 5. This issue has been rated as having Low impact, affects the Linux kernels as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2 and is currently not planned to be addressed in a future updates.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Not affected | ||
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | ||
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix |
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Дополнительная информация
Статус:
EPSS
1.5 Low
CVSS2
Связанные уязвимости
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux ker ...
The vhost_dev_ioctl function in drivers/vhost/vhost.c in the Linux kernel before 4.1.5 allows local users to cause a denial of service (memory consumption) via a VHOST_SET_LOG_FD ioctl call that triggers permanent file-descriptor allocation.
EPSS
1.5 Low
CVSS2