发布时间: 2024年8月23日
修改时间: 2025年4月13日
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Local | Local |
| CVSS评分 | N/A | 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-2024-3572 | xorg-x11-server-xwayland security update | 2024年8月23日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | xorg-x11-server-xwayland | Unaffected |
| KY3.5.2 | xorg-x11-server-xwayland | Fixed |
| KY3.5.2 | xorg-x11-server-xwayland | Unaffected |
