发布时间: 2021年8月20日
修改时间: 2024年10月31日
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Network | Network |
| CVSS评分 | 8.5 | 9.9 |
| Attack Complexity | High | Low |
| Privileges Required | Low | Low |
| Scope | Changed | Changed |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2021-1315 | qemu security update | 2021年8月20日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | qemu | Fixed |
