In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix regression with module command in stack_trace_filter When executing the following command: # echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter The current mod command causes a null pointer dereference. While commit 0f17976568b3f ("ftrace: Fix regression with module command in stack_trace_filter") has addressed part of the issue, it left a corner case unhandled, which still results in a kernel crash.
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ftrace: Fix regression with module command in stack_trace_filter Al ejecutar el siguiente comando: # echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter El comando mod actual provoca una desreferencia de puntero nulo. Si bien el commit 0f17976568b3f ("ftrace: Fix regression with module command in stack_trace_filter") ha solucionado parte del problema, dejó un caso extremo sin resolver, que aún da como resultado un bloqueo del kernel.
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
CWE-476
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-476
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd340a407c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd368e881c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd30864e140> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36a139800> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd340a43800> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd340a41ac0> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |