Описание
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
A flaw was found in cec_adap_g_log_addrs in drivers/media/cec/core/cec-api.c in the Linux Kernel. This issue may allow a local attacker to leak one byte of kernel memory on specific hardware to unprivileged users, directly assigning log_addrs with a hole in the structure, causing a kernel information leak problem.
Меры по смягчению последствий
Mitigation for this issue is to skip loading the affected module HDMI Consumer Electronics Control framework driver "cec" onto the system until we have a fix available. This can be done by a blacklist mechanism, which will ensure the driver is not loaded at the boot time.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Cryostat 2 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected |
Показывать по
Дополнительная информация
Статус:
3.3 Low
CVSS3
Связанные уязвимости
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
An issue was discovered in the Linux kernel before 5.8.6. drivers/medi ...
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
Уязвимость компонента drivers/media/cec/core/cec-api.c ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании
3.3 Low
CVSS3