发布时间: 2023年5月19日
修改时间: 2023年5月19日
A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 7.8 | 7.8 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality | High | High |
| Integrity | High | High |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-1356 | A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later. | 2023年5月19日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | tigervnc | Unaffected |
| KY3.4-5 | tigervnc | Unaffected |
| KY3.5.1 | tigervnc | Unaffected |
| KY3.5.2 | tigervnc | Unaffected |
