发布时间: 2022年3月8日
修改时间: 2022年3月8日
A flaw was found in the way the flags member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 7.8 | |
| Attack Vector | Local | |
| Attack Complexity | Low | |
| Privileges Required | Low | |
| User Interaction | None | |
| Scope | Unchanged | |
| Confidentiality | High | |
| Integrity | High | |
| Availability | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-1110 | A flaw was found in the way the flags member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system. | 2022年3月8日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Unaffected |
| KY3.4-5A | kernel | Unaffected |
