Описание
drivers/net/wireless/ath/ath10k/usb.c in the Linux kernel through 5.2.8 has a NULL pointer dereference via an incomplete address in an endpoint descriptor.
A null pointer dereference flaw was discovered in the Linux kernel's implementation of the ath10k USB device driver. The vulnerability requires the attacker to plug in a specially crafted hardware device that present endpoint descriptors that normal ath10k devices do not recognize. System availability is the highest threat with this vulnerability.
Меры по смягчению последствий
As the ath10k module will be auto-loaded when required, its use can be disabled by preventing the module from loading using the following instructions. On the command line, as root, execute the following command:
echo "install ath10k_usb /bin/true" >> /etc/modprobe.d/disable-ath10k_usb.conf
The system will need to be restarted if the ath10k_usb module are loaded. In most circumstances, the kernel modules will be unable to be unloaded while the ath10k WiFi network interface is in use. If the system requires this module to work correctly, this mitigation may not be suitable. If you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | ||
| Red Hat Enterprise MRG 2 | kernel-rt | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel-alt | Fixed | RHSA-2020:1493 | 16.04.2020 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2020:1567 | 28.04.2020 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2020:1769 | 28.04.2020 |
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Дополнительная информация
Статус:
EPSS
4.3 Medium
CVSS3
Связанные уязвимости
drivers/net/wireless/ath/ath10k/usb.c in the Linux kernel through 5.2.8 has a NULL pointer dereference via an incomplete address in an endpoint descriptor.
drivers/net/wireless/ath/ath10k/usb.c in the Linux kernel through 5.2.8 has a NULL pointer dereference via an incomplete address in an endpoint descriptor.
drivers/net/wireless/ath/ath10k/usb.c in the Linux kernel through 5.2. ...
drivers/net/wireless/ath/ath10k/usb.c in the Linux kernel through 5.2.8 has a NULL pointer dereference via an incomplete address in an endpoint descriptor.
Уязвимость драйвера drivers/net/wireless/ath/ath10k/usb.c ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
4.3 Medium
CVSS3