A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.
Se puede aprovechar una vulnerabilidad de escritura fuera de límites del montón en el componente Linux Kernel Performance Events (perf) del kernel de Linux para lograr una escalada de privilegios local. Si se llama a perf_read_group() mientras la lista de hermanos de un evento es más pequeña que la lista de hermanos de su hijo, puede incrementar o escribir en ubicaciones de memoria fuera del búfer asignado. Recomendamos actualizar después del commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-787
|
| [email protected] | Primary |
en
CWE-787
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd386744180> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd2dbc69fc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369e83640> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd384aa1380> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3849ff0c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3849fea40> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36865e600> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b157440> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3696d7780> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd3849fee00> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd2dbc68700> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd3849fe5c0> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd34bce35c0> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd36865d5c0> | Operating System |
| linux | linux_kernel | 6.6 | <built-in method update of dict object at 0x7fd385453e80> | 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:*:*:*:*:*:*:*:* |
| 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:6.6:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.6:rc6:*:*:*:*:*:* |