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fstec логотип

BDU:2024-08396

Опубликовано: 17 дек. 2021
Источник: fstec
CVSS3: 5.5
CVSS2: 4.6
EPSS Низкий

Описание

Уязвимость компонента xsk ядра операционной системы Linux связана с ошибками в настройках безопасности. Эксплуатация уязвимости может позволить нарушителю выполнить произвольный код и повысить свои привилегии

Вендор

Сообщество свободного программного обеспечения
ООО «Ред Софт»

Наименование ПО

Debian GNU/Linux
РЕД ОС
Linux

Версия ПО

11 (Debian GNU/Linux)
12 (Debian GNU/Linux)
7.3 (РЕД ОС)
от 5.5 до 5.15.12 (Linux)

Тип ПО

Операционная система

Операционные системы и аппаратные платформы

Сообщество свободного программного обеспечения Debian GNU/Linux 11
Сообщество свободного программного обеспечения Debian GNU/Linux 12
ООО «Ред Софт» РЕД ОС 7.3
Сообщество свободного программного обеспечения Linux от 5.5 до 5.15.12

Уровень опасности уязвимости

Средний уровень опасности (базовая оценка CVSS 2.0 составляет 4,6)
Средний уровень опасности (базовая оценка CVSS 3.0 составляет 5,5)

Возможные меры по устранению уязвимости

Использование рекомендаций:
Для Linux:
https://lore.kernel.org/linux-cve-announce/2024030444-CVE-2021-47105-fa23@gregkh/T/#u
https://git.kernel.org/linus/afe8a3ba85ec2a6b6849367e25c06a2f8e0ddd05
https://git.kernel.org/stable/c/ad6d20da2cfbe14b7b1200d15f39e65988b0b9e8
https://git.kernel.org/stable/c/afe8a3ba85ec2a6b6849367e25c06a2f8e0ddd05
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.12
Для РедОС:
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
Для Debian GNU/Linux:
https://security-tracker.debian.org/tracker/CVE-2021-47105

Статус уязвимости

Подтверждена производителем

Наличие эксплойта

Существует в открытом доступе

Информация об устранении

Уязвимость устранена

Идентификаторы других систем описаний уязвимостей

EPSS

Процентиль: 1%
0.00008
Низкий

5.5 Medium

CVSS3

4.6 Medium

CVSS2

Связанные уязвимости

CVSS3: 5.5
ubuntu
больше 1 года назад

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: return xsk buffers back to pool when cleaning the ring Currently we only NULL the xdp_buff pointer in the internal SW ring but we never give it back to the xsk buffer pool. This means that buffers can be leaked out of the buff pool and never be used again. Add missing xsk_buff_free() call to the routine that is supposed to clean the entries that are left in the ring so that these buffers in the umem can be used by other sockets. Also, only go through the space that is actually left to be cleaned instead of a whole ring.

CVSS3: 6
redhat
больше 1 года назад

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: return xsk buffers back to pool when cleaning the ring Currently we only NULL the xdp_buff pointer in the internal SW ring but we never give it back to the xsk buffer pool. This means that buffers can be leaked out of the buff pool and never be used again. Add missing xsk_buff_free() call to the routine that is supposed to clean the entries that are left in the ring so that these buffers in the umem can be used by other sockets. Also, only go through the space that is actually left to be cleaned instead of a whole ring.

CVSS3: 5.5
nvd
больше 1 года назад

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: return xsk buffers back to pool when cleaning the ring Currently we only NULL the xdp_buff pointer in the internal SW ring but we never give it back to the xsk buffer pool. This means that buffers can be leaked out of the buff pool and never be used again. Add missing xsk_buff_free() call to the routine that is supposed to clean the entries that are left in the ring so that these buffers in the umem can be used by other sockets. Also, only go through the space that is actually left to be cleaned instead of a whole ring.

CVSS3: 5.5
debian
больше 1 года назад

In the Linux kernel, the following vulnerability has been resolved: i ...

CVSS3: 5.5
github
больше 1 года назад

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: return xsk buffers back to pool when cleaning the ring Currently we only NULL the xdp_buff pointer in the internal SW ring but we never give it back to the xsk buffer pool. This means that buffers can be leaked out of the buff pool and never be used again. Add missing xsk_buff_free() call to the routine that is supposed to clean the entries that are left in the ring so that these buffers in the umem can be used by other sockets. Also, only go through the space that is actually left to be cleaned instead of a whole ring.

EPSS

Процентиль: 1%
0.00008
Низкий

5.5 Medium

CVSS3

4.6 Medium

CVSS2

Уязвимость BDU:2024-08396