发布时间: 2021年12月24日
修改时间: 2024年10月31日
A security issue has been found in X.Org before version 21.1.2 and Xwayland before version 21.1.4. The handler for the CompositeGlyphs request of the Render extension does not properly validate the request length leading to out of bounds memory write. This can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for SSH X forwarding sessions.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Local | Local |
| CVSS评分 | 7.8 | 7.8 |
| Attack Complexity | Low | Low |
| 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-2021-1467 | xorg-x11-server security update | 2024年10月31日 |
| KylinSec-SA-2022-2140 | xorg-x11-server security update | 2024年10月31日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | xorg-x11-server | Fixed |
| KY3.4-5A | xorg-x11-server | Fixed |
