发布时间: 2024年4月12日
修改时间: 2024年10月31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 | |
| Attack Vector | Local | |
| CVSS评分 | N/A | 7.8 |
| Attack Complexity | Low | |
| Privileges Required | Low | |
| Scope | Unchanged | |
| Integrity | High | |
| User Interaction | None | |
| Availability | 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 |
|---|---|---|
| KY3.4-4A | xorg-x11-server | Fixed |
| KY3.4-5 | xorg-x11-server | Fixed |
| KY3.5.1 | xorg-x11-server | Fixed |
| KY3.5.2 | xorg-x11-server | Fixed |
