发布时间: 2025年3月4日
修改时间: 2025年3月14日
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | |
| Attack Vector | Local | |
| CVSS评分 | N/A | 6.7 |
| Attack Complexity | Low | |
| Privileges Required | High | |
| Scope | Unchanged | |
| Integrity | High | |
| User Interaction | None | |
| Availability | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2025-1646 | grub2 security update | 2025年3月24日 |
| KylinSec-SA-2025-2437 | grub2 security update | 2025年6月3日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | grub2 | Fixed |
| KY3.5.3 | grub2 | Fixed |
| V6 | grub2 | Fixed |
