CVE-2021-3752 (CNNVD-202109-996)
HIGH
中文标题:
Linux kernel 竞争条件问题漏洞
英文标题:
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls conn...
CVSS分数:
7.1
发布时间:
2022-02-16 18:35:34
漏洞类型:
竞争条件问题
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 的 Bluetooth subsystem存在竞争条件问题漏洞，该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
英文描述:
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
CWE类型:
CWE-362
CWE-416
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:*:*:*:*:*:*:*:*
|
| redhat | 3scale | 2.0 | - | - |
cpe:2.3:a:redhat:3scale:2.0:*:*:*:*:*:*:*
|
| redhat | virtualization_host | 4.0 | - | - |
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
|
| fedoraproject | fedora | 34 | - | - |
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
|
| redhat | enterprise_linux | 7.0 | - | - |
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
|
| redhat | enterprise_linux | 8.0 | - | - |
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
|
| redhat | enterprise_linux_for_real_time | 7 | - | - |
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:*
|
| redhat | enterprise_linux_for_real_time_for_nfv | 7 | - | - |
cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:7:*:*:*:*:*:*:*
|
| 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 | h300e_firmware | - | - | - |
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
|
| netapp | h500e_firmware | - | - | - |
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
|
| netapp | h700e_firmware | - | - | - |
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
|
| netapp | h410s_firmware | - | - | - |
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
|
| netapp | h410c_firmware | - | - | - |
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
|
| debian | debian_linux | 9.0 | - | - |
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
|
| debian | debian_linux | 10.0 | - | - |
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
|
| 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_network_exposure_function | 22.1.1 | - | - |
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
|
| oracle | communications_cloud_native_core_policy | 22.2.0 | - | - |
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
|
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）
参考链接
无标题
x_refsource_MISC
cve.org
访问
cve.org
无标题
x_refsource_MISC
cve.org
访问
cve.org
无标题
x_refsource_MISC
cve.org
访问
cve.org
[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update
mailing-list
cve.org
访问
cve.org
[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update
mailing-list
cve.org
访问
cve.org
DSA-5096
vendor-advisory
cve.org
访问
cve.org
无标题
x_refsource_MISC
cve.org
访问
cve.org
无标题
x_refsource_CONFIRM
cve.org
访问
cve.org
CVSS评分详情
7.1
HIGH
CVSS向量:
CVSS:3.1/AV:A/AC:H/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:
2022-02-16 18:35:34
修改时间:
2024-08-03 17:09:08
创建时间:
2025-11-11 15:36:58
更新时间:
2025-11-11 15:56:56
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-2021-3752 |
2025-11-11 15:21:05 | 2025-11-11 07:36:58 |
| NVD | nvd_CVE-2021-3752 |
2025-11-11 14:57:49 | 2025-11-11 07:45:16 |
| CNNVD | cnnvd_CNNVD-202109-996 |
2025-11-11 15:10:43 | 2025-11-11 07:56:56 |
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 15:56:56
vulnerability_type: 未提取 → 竞争条件问题; cnnvd_id: 未提取 → CNNVD-202109-996; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
- vulnerability_type: 未提取 -> 竞争条件问题
- cnnvd_id: 未提取 -> CNNVD-202109-996
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2
NVD
2025-11-11 15:45:16
severity: SeverityLevel.MEDIUM → SeverityLevel.HIGH; cvss_score: 未提取 → 7.1; cvss_vector: NOT_EXTRACTED → CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H; cvss_version: NOT_EXTRACTED → 3.1; affected_products_count: 0 → 21; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
- severity: SeverityLevel.MEDIUM -> SeverityLevel.HIGH
- cvss_score: 未提取 -> 7.1
- cvss_vector: NOT_EXTRACTED -> CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- cvss_version: NOT_EXTRACTED -> 3.1
- affected_products_count: 0 -> 21
- data_sources: ['cve'] -> ['cve', 'nvd']