A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.
Se encontró una falla en el subsistema Netfilter en el kernel de Linux. La función nfnl_osf_add_callback no validó el campo opt_num controlado por el modo de usuario. Esta falla permite que un atacante local privilegiado (CAP_NET_ADMIN) active una lectura fuera de límites, lo que provoca un bloqueo o la divulgación de información.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | HIGH |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-125
|
| [email protected] | Primary |
en
CWE-125
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369406140> | Operating System |
| redhat | enterprise_linux | 8.0 | <built-in method update of dict object at 0x7fd369404380> | Operating System |
| redhat | enterprise_linux | 9.0 | <built-in method update of dict object at 0x7fd3844a06c0> | Operating System |
| fedoraproject | fedora | 38 | <built-in method update of dict object at 0x7fd3844a2640> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |