发布时间: 2023年9月2日
修改时间: 2024年10月31日
A flaw was found in the Linux kernel s TUN/TAP functionality. This issue could allow a local user to bypass network filters and gain unauthorized access to some resources. The original patches fixing CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits - a096ccca6e50 ( tun: tun_chr_open(): correctly initialize socket uid ), - 66b2c338adce ( tap: tap_open(): correctly initialize socket uid ), pass inode->i_uid to sock_init_data_uid() as the last parameter and that turns out to not be accurate.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Local | Local |
| CVSS评分 | 5.5 | 5.5 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | None | None |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-2249 | kernel security update | 2023年9月2日 |
| KylinSec-SA-2023-2247 | kernel security update | 2023年9月2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 |
