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 split HTTP headers. While processing a split HTTP header, grub2 wrongly advances its control pointer to the internal buffer by one position, which can lead to an out-of-bounds write. This flaw allows an attacker to leverage this issue by crafting a malicious set of HTTP packages making grub2 corrupt its internal memory metadata structure. This leads to data integrity and confidentiality issues or forces grub to crash, resulting in a denial of service attack.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | Low | Low |
| Attack Vector | Network | Network |
| CVSS评分 | 7.0 | 7.0 |
| Attack Complexity | High | High |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | Low | Low |
| 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 |
