The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
El kernel de Linux anterior a la versión 5.17.9 permite a los servidores TCP identificar a los clientes observando qué puertos de origen se utilizan. Esto ocurre debido al uso del Algoritmo 4 ("Double-Hash Port Selection Algorithm") del RFC 6056
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | LOW |
| Integrity Impact | NONE |
| Availability Impact | NONE |
AV:L/AC:L/Au:N/C:P/I:N/A:N
| Access Vector | LOCAL |
|---|---|
| Access Complexity | LOW |
| Authentication | NONE |
| Confidentiality Impact | PARTIAL |
| Integrity Impact | NONE |
| Availability Impact | NONE |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-330
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd385453b00> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |