A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds read by setting the size fields with a value beyond the array boundaries, leading to a crash or information disclosure.
Se encontró una falla en el subsistema Netfilter en el kernel de Linux. El módulo xt_u32 no validó los campos en la estructura xt_u32. Esta falla permite a un atacante local privilegiado activar una lectura fuera de límites configurando los campos de tamaño con un valor más allá de los límites de la matriz, 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 0x7fd31b244c40> | Operating System |
| redhat | enterprise_linux | 8.0 | <built-in method update of dict object at 0x7fd30864ea80> | Operating System |
| fedoraproject | fedora | 38 | <built-in method update of dict object at 0x7fd31b246380> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |