发布时间: 2025年3月4日
修改时间: 2025年3月14日
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | None |
| Attack Vector | Local | Local |
| CVSS评分 | 6.0 | 4.1 |
| Attack Complexity | Low | High |
| Privileges Required | High | High |
| Scope | Unchanged | Unchanged |
| Integrity | None | High |
| User Interaction | None | None |
| Availability | High | None |
| 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 |
