发布时间: 2022年9月16日
修改时间: 2024年10月31日
An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | High |
| Attack Vector | Local | Local |
| CVSS评分 | 6.1 | 6.7 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | High |
| Scope | Unchanged | Unchanged |
| Integrity | Low | High |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-2138 | kernel security update | 2022年9月16日 |
| KylinSec-SA-2022-2855 | kernel security update | 2022年10月14日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Fixed |
| KY3.4-5 | kernel | Fixed |
| KY3.5.1 | kernel | Fixed |
