发布时间: 2023年3月17日
修改时间: 2024年10月31日
A flaw found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function.While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability.This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters.References:https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=66b2c338adce580dfce2199591e65e2bab889cffhttps://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a096ccca6e503a5c575717ff8a36ace27510ab0a
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | High |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 4.7 |
| Attack Complexity | Low | High |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | High | None |
| User Interaction | None | None |
| Availability | None | None |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-2116 | kernel security update | 2023年3月17日 |
| KylinSec-SA-2023-2118 | kernel security update | 2023年3月17日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Fixed |
| KY3.4-5A | kernel | Fixed |
| KY3.5.1 | kernel | Fixed |
| KY3.5.2 | kernel | Fixed |
