发布时间: 2022年7月1日
修改时间: 2024年10月31日
A flaw was found in grub2 when handling JPEG images. This flaw allows an attacker to craft a malicious JPEG image, which leads to an underflow on a grub2's internal pointer, leading to a heap-based out-of-bounds write. Secure-boot mechanisms circumvention and arbitrary code execution may also be achievable.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Local | Local |
| CVSS评分 | 7.0 | 7.5 |
| Attack Complexity | High | High |
| Privileges Required | Low | High |
| Scope | Unchanged | Changed |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-1611 | grub2 security update | 2022年7月1日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | grub2 | Fixed |
| KY3.4-5 | grub2 | Fixed |
| KY3.5.1 | grub2 | Fixed |
