CVE编号
CVE-2020-8428利用情况
暂无补丁情况
官方补丁披露时间
2020-01-29漏洞描述
在5.5之前的Linux内核中，fs/namei.c有一个 may_create_in_sticky use-after-free ，它允许本地用户导致拒绝服务(OOPS)，或者可能从内核内存获取敏感信息，即CID-d0cb50185ae9。如果套接字被移动到新的父目录，并且它的旧父目录被删除，那么攻击向量可能是UNIX域套接字的一个开放系统调用。解决建议
用户可参考如下厂商提供的安全补丁以修复该漏洞：https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6
参考链接 |
|
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html | |
| http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice... | |
| http://www.openwall.com/lists/oss-security/2020/01/28/4 | |
| http://www.openwall.com/lists/oss-security/2020/02/02/1 | |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0... | |
| https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6 | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html | |
| https://security.netapp.com/advisory/ntap-20200313-0003/ | |
| https://usn.ubuntu.com/4318-1/ | |
| https://usn.ubuntu.com/4319-1/ | |
| https://usn.ubuntu.com/4320-1/ | |
| https://usn.ubuntu.com/4324-1/ | |
| https://usn.ubuntu.com/4325-1/ | |
| https://www.debian.org/security/2020/dsa-4667 | |
| https://www.debian.org/security/2020/dsa-4698 | |
| https://www.openwall.com/lists/oss-security/2020/01/28/2 |
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 | linux | * |
Up to (excluding) 4.19.91-21.al7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | linux | * |
Up to (excluding) 4.19.98-1+deb10u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | linux | * |
Up to (excluding) 4.9.144-3.1~deb8u1 |
|||||
| 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 | linux | linux_kernel | * |
From (including) 4.19 |
Up to (excluding) 5.5 |
||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | linux | * |
Up to (excluding) 4.12.14-lp151.28.40.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12 | kernel-azure | * |
Up to (excluding) 4.12.14-6.37 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12_SP4 | linux | * |
Up to (excluding) 4.12.14-6.37.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12_SP5 | linux | * |
Up to (excluding) 4.12.14-16.10.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP4 | linux | * |
Up to (excluding) 4.12.14-6.37.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | linux | * |
Up to (excluding) 4.12.14-16.10.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04 | linux | * |
Up to (excluding) 4.15.0-1077.82~14.04.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04_lts | linux | * |
Up to (excluding) 3.11.0-12.19 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | linux | * |
Up to (excluding) 4.15.0-1060.64 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04_lts | linux | * |
Up to (excluding) 4.4.0-177.207 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux | * |
Up to (excluding) 4.15.0-1060.64 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04_lts | linux | * |
Up to (excluding) 4.15.0-96.97 |
|||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 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 无影响
- 全网数量 100
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