CVE-2021-4197 (CNNVD-202201-1396)
HIGH
中文标题:
Linux kernel 授权问题漏洞
英文标题:
An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces s...
CVSS分数:
7.8
发布时间:
2022-03-23 19:46:43
漏洞类型:
授权问题
状态:
PUBLISHED
数据质量分数:
0.30
数据版本:
v3
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 存在授权问题漏洞，攻击者可利用该漏洞通过Cgroup Fd Writing绕过Linux内核的限制以提升权限。
英文描述:
An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.
CWE类型:
CWE-287
标签:
（暂无数据）
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| linux | linux_kernel | * | - | - |
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
| oracle | communications_cloud_native_core_binding_support_function | 22.1.1 | - | - |
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.1:*:*:*:*:*:*:*
|
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 | - | - |
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
|
| oracle | communications_cloud_native_core_binding_support_function | 22.2.0 | - | - |
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.2.0:*:*:*:*:*:*:*
|
| debian | debian_linux | 10.0 | - | - |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
|
| broadcom | brocade_fabric_operating_system_firmware | - | - | - |
cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*
|
| netapp | h300s_firmware | - | - | - |
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
|
| netapp | h500s_firmware | - | - | - |
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
|
| netapp | h700s_firmware | - | - | - |
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
|
| netapp | h410s_firmware | - | - | - |
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
|
| netapp | h410c_firmware | - | - | - |
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
（暂无数据）
英文解决方案:
（暂无数据）
临时解决方案:
（暂无数据）
CVSS评分详情
7.8
HIGH
CVSS向量:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS版本:
3.1
机密性
HIGH
完整性
HIGH
可用性
HIGH
时间信息
发布时间:
2022-03-23 19:46:43
修改时间:
2024-08-03 17:16:04
创建时间:
2025-11-11 15:37:03
更新时间:
2025-11-11 15:57:04
利用信息
暂无可利用代码信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2021-4197 |
2025-11-11 15:21:12 | 2025-11-11 07:37:03 |
| NVD | nvd_CVE-2021-4197 |
2025-11-11 14:57:49 | 2025-11-11 07:45:21 |
| CNNVD | cnnvd_CNNVD-202201-1396 |
2025-11-11 15:10:48 | 2025-11-11 07:57:04 |
版本与语言
当前版本:
v3
主要语言:
EN
支持语言:
EN
ZH
安全公告
暂无安全公告信息
变更历史
v3
CNNVD
2025-11-11 15:57:04
vulnerability_type: 未提取 → 授权问题; cnnvd_id: 未提取 → CNNVD-202201-1396; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
- vulnerability_type: 未提取 -> 授权问题
- cnnvd_id: 未提取 -> CNNVD-202201-1396
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2
NVD
2025-11-11 15:45:21
severity: SeverityLevel.MEDIUM → SeverityLevel.HIGH; cvss_score: 未提取 → 7.8; cvss_vector: NOT_EXTRACTED → CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; cvss_version: NOT_EXTRACTED → 3.1; affected_products_count: 0 → 11; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
- severity: SeverityLevel.MEDIUM -> SeverityLevel.HIGH
- cvss_score: 未提取 -> 7.8
- cvss_vector: NOT_EXTRACTED -> CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- cvss_version: NOT_EXTRACTED -> 3.1
- affected_products_count: 0 -> 11
- data_sources: ['cve'] -> ['cve', 'nvd']