低危 ivot_root race conditions in fs /namespace.c
CVE编号
CVE-2020-12114利用情况
暂无补丁情况
官方补丁披露时间
2020-05-05漏洞描述
Linux内核中4.4.221之前的4.4.x，4.9.221之前的4.9.x，4.14.178之前的4.14.x，4.14.178之前的4.19.x和5.3之前的版本的Linux内核中的fs/namespace.c中的ivot_root竞争条件允许本地用户通过破坏安装点引用计数器来导致拒绝服务（恐慌）。解决建议
厂商已发布了漏洞修复程序，请及时关注更新：https://www.kernel.org/受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | kernel | * | Up to (excluding) 4.19.91-21.al7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | kernel | * | Up to (excluding) 4.18 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8.2 | kernel | * | Up to (excluding) 4.18.0-193.56.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | kernel | * | Up to (excluding) 4.18.0-305.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | linux | * | Up to (excluding) 4.19.118-2+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | linux | * | Up to (excluding) 5.3.7-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | linux | * | Up to (excluding) 5.3.7-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | linux | * | Up to (excluding) 3.16.57-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | linux | * | Up to (excluding) 4.9.210-1+deb9u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | linux | * | Up to (excluding) 5.3.7-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 4.14 | Up to (excluding) 4.14.178 | ||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 4.19 | Up to (excluding) 4.19.119 | ||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 4.4.0 | Up to (excluding) 4.4.221 | ||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 4.9.0 | Up to (excluding) 4.9.221 | ||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 5.0 | Up to (excluding) 5.3 | ||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | kernel | * | Up to (excluding) 4.12.14-lp151.28.52.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_6 | kernel | * | Up to (excluding) 4.1.12-124.54.6.1.el6uek | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | kernel | * | Up to (excluding) 4.14.35-1902.306.2.el7uek | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | kernel | * | Up to (excluding) 4.18.0-305.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | kernel | * | Up to (excluding) 4.18.0-305.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12 | kernel-azure | * | Up to (excluding) 4.12.14-16.16 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP4 | kernel | * | Up to (excluding) 4.12.14-95.54.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | kernel | * | Up to (excluding) 4.12.14-122.23.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | linux | * | Up to (excluding) 4.15.0-106.107~16.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | linux | * | Up to (excluding) 4.4.0-184.214 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux | * | Up to (excluding) 4.15.0-1073.77 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | linux | * | Up to (excluding) 4.15.0-106.107 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | linux | * | Up to (excluding) 5.4.0-1015.15 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 DoS
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-362 | 使用共享资源的并发执行不恰当同步问题（竞争条件） |
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