In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as kernel-originating inputs. However, userspace can also create keys of this type through request_key(2) or add_key(2), allowing those fields to be supplied without CIFS origin. Only accept cifs.spnego descriptions while CIFS is using its private spnego_cred to request the key.
En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: smb: cliente: rechazar descripciones de cifs.spnego del espacio de usuario Las descripciones de claves de cifs.spnego contienen campos que confieren autoridad, como pid, uid, creduid y upcall_target, que cifs.upcall trata como entradas con origen en el kernel. Sin embargo, el espacio de usuario también puede crear claves de este tipo a través de request_key(2) o add_key(2), permitiendo que esos campos sean proporcionados sin origen CIFS. Solo aceptar descripciones de cifs.spnego mientras CIFS esté usando su spnego_cred privado para solicitar la clave.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | NONE |
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Type: Secondary
Exploitability Score: 1.8
Impact Score: 5.2
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-20
|
| 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | Secondary |
en
CWE-825
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be61040> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3694e5c80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be60f40> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be60a80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be61fc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36be634c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd37039b6c0> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd3703995c0> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd39c4e6840> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd36be63680> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd37039bc00> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd36be61200> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd36be61180> | Operating System |
| linux | linux_kernel | 2.6.24 | <built-in method update of dict object at 0x7fd36be60b80> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd370399380> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd37034a500> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd37039bd00> | Operating System |
| linux | linux_kernel | 7.1 | <built-in method update of dict object at 0x7fd36a688340> | 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:2.6.24:-:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc7:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.24:rc8:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* |