Описание
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: discard table flag update with pending basechain deletion
Hook unregistration is deferred to the commit phase, same occurs with
hook updates triggered by the table dormant flag. When both commands are
combined, this results in deleting a basechain while leaving its hook
still registered in the core.
This CVE involves a flaw in the Linux kernel's nf_tables component, part of the Netfilter framework used for packet filtering and firewall functionalities. The vulnerability arises when a table's dormant flag is updated while there's a pending deletion of a base chain. In such cases, the unregistration of hooks is deferred until the commit phase. If both operations—updating the dormant flag and deleting the base chain—are combined, it can result in the base chain being deleted while its hook remains registered in the core system. This inconsistency may lead to unexpected behavior or potential security risks.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Fixed | RHSA-2024:5102 | 08.08.2024 |
| Red Hat Enterprise Linux 8 | kernel | Fixed | RHSA-2024:5101 | 08.08.2024 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2024:5928 | 28.08.2024 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2024:5928 | 28.08.2024 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | kernel | Fixed | RHSA-2024:5257 | 13.08.2024 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | kernel-rt | Fixed | RHSA-2024:5256 | 13.08.2024 |
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Дополнительная информация
Статус:
EPSS
5.5 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: discard table flag update with pending basechain deletion Hook unregistration is deferred to the commit phase, same occurs with hook updates triggered by the table dormant flag. When both commands are combined, this results in deleting a basechain while leaving its hook still registered in the core.
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: discard table flag update with pending basechain deletion Hook unregistration is deferred to the commit phase, same occurs with hook updates triggered by the table dormant flag. When both commands are combined, this results in deleting a basechain while leaving its hook still registered in the core.
In the Linux kernel, the following vulnerability has been resolved: n ...
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: discard table flag update with pending basechain deletion Hook unregistration is deferred to the commit phase, same occurs with hook updates triggered by the table dormant flag. When both commands are combined, this results in deleting a basechain while leaving its hook still registered in the core.
Уязвимость компонента nf_tables ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
5.5 Medium
CVSS3