发布时间: 2023年1月5日
修改时间: 2023年1月6日
This vulnerability may cause kernel cache write overwriting, affecting integrity and system availability. When a hid device is created, the HID_GLOBAL_ITEM_TAG_REPORT_SIZE and HID_GLOBAL_ITEM_TAG_REPORT_COUNT fields are set to 0. As a result, the size field in the applied report structure is 0. This problem may occur when the device is accessed later. When report->size is set to 0, the memory length cleared by memset is 536870912. As a result, other memory areas are cleared by mistake, causing a kernel exception.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | Low | |
| Attack Vector | Network | |
| CVSS评分 | 6.3 | |
| Attack Complexity | Low | |
| Privileges Required | Low | |
| Scope | Unchanged | |
| Integrity | Low | |
| User Interaction | None | |
| Availability | Low |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2023-1001 | This vulnerability may cause kernel cache write overwriting, affecting integrity and system availability. When a hid device is created, the HID_GLOBAL_ITEM_TAG_REPORT_SIZE and HID_GLOBAL_ITEM_TAG_REPORT_COUNT fields are set to 0. As a result, the size field in the applied report structure is 0. This problem may occur when the device is accessed later. When report->size is set to 0, the memory length cleared by memset is 536870912. As a result, other memory areas are cleared by mistake, causing a kernel exception. | 2023年1月5日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | kernel | Unaffected |
| KY3.4-5 | kernel | Unaffected |
| KY3.5.1 | kernel | Unaffected |
