CVE-2023-53996 (CNNVD-202512-4703)
中文标题:
Linux kernel 安全漏洞
英文标题:
x86/sev: Make enc_dec_hypercall() accept a size instead of npages
漏洞描述
中文描述:
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于enc_dec_hypercall接受页数而非大小，可能导致页面错误标记。
英文描述:
In the Linux kernel, the following vulnerability has been resolved: x86/sev: Make enc_dec_hypercall() accept a size instead of npages enc_dec_hypercall() accepted a page count instead of a size, which forced its callers to round up. As a result, non-page aligned vaddrs caused pages to be spuriously marked as decrypted via the encryption status hypercall, which in turn caused consistent corruption of pages during live migration. Live migration requires accurate encryption status information to avoid migrating pages from the wrong perspective.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Linux | Linux | - | < ba50e7773a99a109a1ea6f753b766a080d3b21cc | - |
cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
|
| Linux | Linux | 5.16 | - | - |
cpe:2.3:a:linux:linux:5.16:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2023-53996 |
2025-12-25 02:03:31 | 2026-01-12 02:09:08 |
| NVD | nvd_CVE-2023-53996 |
2025-12-30 04:12:18 | 2026-01-12 02:27:00 |
| CNNVD | cnnvd_CNNVD-202512-4703 |
2026-01-11 06:15:04 | 2026-01-12 02:38:06 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 其他
- severity: SeverityLevel.MEDIUM -> SeverityLevel.UNKNOWN
- cvss_score: 未提取 -> 0.0
- cnnvd_id: 未提取 -> CNNVD-202512-4703
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- affected_products_count: 5 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']