In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: sanitize offset and length before calling skb_checksum() If access to offset + length is larger than the skbuff length, then skb_checksum() triggers BUG_ON(). skb_checksum() internally subtracts the length parameter while iterating over skbuff, BUG_ON(len) at the end of it checks that the expected length to be included in the checksum calculation is fully consumed.
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nft_payload: desinfecta el desplazamiento y la longitud antes de llamar a skb_checksum() Si el acceso a desplazamiento + longitud es mayor que la longitud de skbuff, entonces skb_checksum() activa BUG_ON(). skb_checksum() resta internamente el parámetro de longitud mientras itera sobre skbuff, BUG_ON(len) al final verifica que la longitud esperada que se incluirá en el cálculo de la suma de comprobación se haya consumido por completo.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3401ff540> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b25efc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd370265940> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd340ad7d00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3401fe0c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd370265580> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd38545dc80> | Operating System |
| linux | linux_kernel | 6.12 | <built-in method update of dict object at 0x7fd360697dc0> | Operating System |
| linux | linux_kernel | 6.12 | <built-in method update of dict object at 0x7fd3401fd480> | Operating System |
| linux | linux_kernel | 6.12 | <built-in method update of dict object at 0x7fd3401ff180> | Operating System |
| linux | linux_kernel | 6.12 | <built-in method update of dict object at 0x7fd369400840> | Operating System |
| linux | linux_kernel | 6.12 | <built-in method update of dict object at 0x7fd3402242c0> | 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:6.12:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:* |