In the Linux kernel, the following vulnerability has been resolved: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak When processing Router Advertisements with user options the kernel builds an RTM_NEWNDUSEROPT netlink message. The nduseroptmsg struct has three padding fields that are never zeroed and can leak kernel data The fix is simple, just zeroes the padding fields.
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-909
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea8bd00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23af2bfd00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea8a840> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea88440> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea89cc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea88f80> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7d23bea8b140> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23bea8bc80> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23bea8b3c0> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23bea8a140> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23bea8a800> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23af2bf980> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7d23bea88140> | 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:7.0:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* |