Описание
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/sisusbvga/sisusb.c driver.
A NULL pointer dereference flaw was found in the way the USB2VGA dongles driver in the Linux kernel handled failed initialization. This flaw allows an attacker able to insert USB2VGA dongles into the system to crash the system.
Отчет
This issue is rated as having Low impact because of the physical access needed to trigger this issue. Also, failed initialization with the core USB subsystem is also a rare event to hit.
Меры по смягчению последствий
To mitigate this issue, prevent module sisusbvga from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 7 | kernel-alt | Fix deferred | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fix deferred | ||
| Red Hat Enterprise Linux 8 | kernel | Affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Fix deferred | ||
| Red Hat Enterprise MRG 2 | kernel | Out of support scope |
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Дополнительная информация
Статус:
EPSS
4.6 Medium
CVSS3
Связанные уязвимости
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/sisusbvga/sisusb.c driver.
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/sisusbvga/sisusb.c driver.
An issue was discovered in the Linux kernel before 5.1.8. There is a N ...
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/usb/misc/sisusbvga/sisusb.c driver.
ELSA-2019-4870: Unbreakable Enterprise kernel security update (IMPORTANT)
EPSS
4.6 Medium
CVSS3