In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_u32: use skb_header_pointer_careful() skb_header_pointer() does not fully validate negative @offset values. Use skb_header_pointer_careful() instead. GangMin Kim provided a report and a repro fooling u32_classify(): BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0 net/sched/cls_u32.c:221
En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: net/sched: cls_u32: usar skb_header_pointer_careful() skb_header_pointer() no valida completamente los valores negativos de @offset. Usar skb_header_pointer_careful() en su lugar. GangMin Kim proporcionó un informe y una reproducción engañando a u32_classify(): BUG: KASAN: slab-out-of-bounds en u32_classify+0x1180/0x11b0 net/sched/cls_u32.c:221
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-125
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23beb81d80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23beb80700> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23beb809c0> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb81000> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb83b80> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb83c00> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb82880> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb82280> | Operating System |
| linux | linux_kernel | 2.6.35 | <built-in method update of dict object at 0x7d23beb83d40> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb81500> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb80500> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb825c0> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb826c0> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb81e80> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d24246e51c0> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb838c0> | Operating System |
| linux | linux_kernel | 6.19 | <built-in method update of dict object at 0x7d23beb82c80> | 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:2.6.35:-:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.35:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.35:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.35:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.35:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:2.6.35:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:* |