发布时间: 2023年7月21日
修改时间: 2024年10月31日
A time-of-check to time-of-use issue exists in io_uring subsystem s IORING_OP_CLOSE operation in the Linux kernel s versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Local | Local |
| CVSS评分 | 7.0 | 7.0 |
| Attack Complexity | High | High |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-1543 | A time-of-check to time-of-use issue exists in io_uring subsystem s IORING_OP_CLOSE operation in the Linux kernel s versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93. | 2023年7月19日 |
| KylinSec-SA-2023-2209 | kernel security update | 2023年7月21日 |
| KylinSec-SA-2023-2211 | kernel security update | 2023年7月21日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Fixed |
| KY3.5.2 | kernel | Fixed |
| KY3.4-5A | kernel | Fixed |
| KY3.5.1 | kernel | Fixed |
