In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix suspicious rcu_dereference_protected() When destroying all sets, we are either in pernet exit phase or are executing a "destroy all sets command" from userspace. The latter was taken into account in ip_set_dereference() (nfnetlink mutex is held), but the former was not. The patch adds the required check to rcu_dereference_protected() in ip_set_dereference().
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: netfilter: ipset: corrige rcu_dereference_protected() sospechoso Al destruir todos los conjuntos, estamos en la fase de salida de pernet o estamos ejecutando un "comando de destruir todos los conjuntos" desde el espacio de usuario. Este último se tuvo en cuenta en ip_set_dereference() (se mantiene el mutex de nfnetlink), pero el primero no. El parche agrega la verificación requerida a rcu_dereference_protected() en ip_set_dereference().
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
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| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | 6.1.95 | <built-in method update of dict object at 0x7fd340225500> | Operating System |
| linux | linux_kernel | 6.6.35 | <built-in method update of dict object at 0x7fd348ef2080> | Operating System |
| linux | linux_kernel | 6.9.6 | <built-in method update of dict object at 0x7fd36b25f3c0> | Operating System |
| linux | linux_kernel | 6.10 | <built-in method update of dict object at 0x7fd2d3949840> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:6.1.95:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6.35:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.9.6:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.10:rc4:*:*:*:*:*:* |