CVE编号
CVE-2021-3501利用情况
暂无补丁情况
官方补丁披露时间
2021-05-06漏洞描述
A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1950136 | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id... | |
| https://security.netapp.com/advisory/ntap-20210618-0008/ |
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 | amazon_2 | kernel | * |
Up to (excluding) 5.10.35-31.135.amzn2 |
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| 运行在以下环境 | |||||||||
| 系统 | centos_8 | kpatch-patch | * |
Up to (excluding) 4.18.0-305.3.1.el8_4 |
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| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * |
Up to (excluding) 5.12 |
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| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | kpatch-patch | * |
Up to (excluding) 4.18.0-305.3.1.el8_4 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat | enterprise_linux | 8.0 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | kpatch-patch | * |
Up to (excluding) 4_18_0-305-1-1.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | linux | * |
Up to (excluding) 4.13.0-16.19 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | kpatch-patch | * |
Up to (excluding) 5.10.0-1029.30 |
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| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | kpatch-patch | * |
Up to (excluding) 5.11.0-18.19 |
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- 攻击路径 本地
- 攻击复杂度 容易
- 权限要求 普通权限
- 影响范围 全局影响
- EXP成熟度 N/A
- 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 服务器失陷
- 全网数量 N/A
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