iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.
iproute2 versiones anteriores a 5.1.0, presenta un uso de la memoria previamente liberada en la función get_netnsid_from_name en el archivo ip/ipnetns.c. NOTA: la relevancia para la seguridad puede limitarse a ciertos usos del setuid que, aunque no es un valor predeterminado, a veces es una opción de configuración ofrecida a los usuarios finales. Incluso cuando se utiliza setuid, otros factores (como la configuración de la biblioteca C) pueden bloquear la posibilidad de explotación.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | HIGH |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
AV:L/AC:L/Au:N/C:N/I:N/A:P
| Access Vector | LOCAL |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | PARTIAL |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-416
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| iproute2_project | iproute2 | * | <built-in method update of dict object at 0x7fd370224e80> | Application |
| canonical | ubuntu_linux | 18.04 | <built-in method update of dict object at 0x7fd39c402ec0> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:iproute2_project:iproute2:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |