Описание
A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.
A flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol (L2CAP), part of the Bluetooth stack in the l2cap_parse_conf_rsp and l2cap_parse_conf_req functions. An attacker with physical access within the range of standard Bluetooth transmission can create a specially crafted packet. The response to this specially crafted packet can contain part of the kernel stack which can be used in a further attack.
Меры по смягчению последствий
- Disabling the bluetooth hardware in the bios.
- Prevent loading of the bluetooth kernel modules.
- Disable the bluetooth connection by putting the system in "airport" mode.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Will not fix | ||
| Red Hat Enterprise MRG 2 | kernel-rt | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2019:2043 | 07.08.2019 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2019:2029 | 06.08.2019 |
| Red Hat Enterprise Linux 7 | kernel-alt | Fixed | RHSA-2020:0740 | 09.03.2020 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2019:3309 | 05.11.2019 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2019:3517 | 05.11.2019 |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.
A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.
A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_ ...
A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.
Уязвимость функции L2CAP_PARSE_CONF_RSP ядра операционных систем Linux, связанная с раскрытием информации, позволяющая нарушителю получить доступ к конфиденциальным данным
EPSS
5.3 Medium
CVSS3