Описание
An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
A flaw was found in the Linux kernel. When xfrm policy removal occurs a system crash could occur. These policy changes generally occur through the ip command or a netlink socket.
Отчет
A local privileged user (with CAP_NET_ADMIN or root) is required to exploit this condition. With this limitation, this issue is rated as Moderate.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | ||
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-alt | Fixed | RHSA-2020:1493 | 16.04.2020 |
| 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
6.7 Medium
CVSS3
Связанные уязвимости
An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
An issue was discovered in the Linux kernel before 5.0.19. There is an ...
An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.
Уязвимость компонента __xfrm_policy_unlink ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
6.7 Medium
CVSS3