In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: zero chainstack array sashiko reports: looking at ebtables table translation, could a sparse cpu_possible_mask lead to an uninitialized pointer free? If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible, but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at CPU 2, the cleanup loop will blindly decrement and call vfree() on newinfo->chainstack[1]. Not a real-world bug, such allocation isn't expected to fail in the first place.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | HIGH |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Type: Secondary
Exploitability Score: 1.0
Impact Score: 5.9
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-908
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d24245ad780> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23a59842c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d24246c1b80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d24604ad7c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d2424504f00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d2424507100> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d24246c2400> | Operating System |
| linux | linux_kernel | 2.6.12 | <built-in method update of dict object at 0x7d23a59859c0> | Operating System |
| linux | linux_kernel | 2.6.12 | <built-in method update of dict object at 0x7d242a875e80> | Operating System |
| linux | linux_kernel | 2.6.12 | <built-in method update of dict object at 0x7d2424507640> | Operating System |
| linux | linux_kernel | 2.6.12 | <built-in method update of dict object at 0x7d23a5984b00> | Operating System |
| linux | linux_kernel | 2.6.12 | <built-in method update of dict object at 0x7d23a5986f80> | Operating System |
| linux | linux_kernel | 7.2 | <built-in method update of dict object at 0x7d24245a0400> | Operating System |
| linux | linux_kernel | 7.2 | <built-in method update of dict object at 0x7d23a7093f40> | 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:2.6.12:-:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.2:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.2:rc2:*:*:*:*:*:* |