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 IPv4 packets. This flaw allows an attacker to craft a malicious packet, triggering an integer underflow in grub code. Consequently, the memory allocation for handling the packet data may be smaller than the size needed. This issue causes an out-of-bands write during packet handling, compromising data integrity, confidentiality issues, a denial of service, and remote code execution.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Network | Network |
| CVSS评分 | 8.1 | 8.8 |
| Attack Complexity | High | Low |
| Privileges Required | None | None |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | None | Required |
| 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 |
