Описание
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
A flaw was found in the AMD Cryptographic Co-processor driver in the Linux kernel. An attacker, able to send invalid SHA type commands, could cause the system to crash. The highest threat from this vulnerability is to system availability.
Отчет
This issue is rated as having Moderate impact because it affects only specific hardware enabled systems.
Меры по смягчению последствий
In order to mitigate this issue it is possible to prevent the affected code from being loaded by blacklisting the kernel module ccp. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise MRG 2 | kernel | Will not fix | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2020:4062 | 29.09.2020 |
| Red Hat Enterprise Linux 7 | kernel-alt | Fixed | RHSA-2020:2854 | 07.07.2020 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2020:4060 | 29.09.2020 |
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2020:4609 | 04.11.2020 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2020:4431 | 04.11.2020 |
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Дополнительная информация
Статус:
5.5 Medium
CVSS3
Связанные уязвимости
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ ...
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
Уязвимость функции ccp_run_sha_cmd() (drivers/crypto/ccp/ccp-ops.c) ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
5.5 Medium
CVSS3