低危 linux linux_kernel 跨界内存读
CVE编号
CVE-2021-20177利用情况
暂无补丁情况
官方补丁披露时间
2021-05-27漏洞描述
A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.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 |
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https://bugzilla.redhat.com/show_bug.cgi?id=1914719 |
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 | debian_10 | linux | * | Up to (excluding) 4.19.171-2 | |||||
运行在以下环境 | |||||||||
系统 | debian_11 | linux | * | Up to (excluding) 5.5.13-1 | |||||
运行在以下环境 | |||||||||
系统 | debian_12 | linux | * | Up to (excluding) 5.5.13-1 | |||||
运行在以下环境 | |||||||||
系统 | debian_9 | linux-4.19 | * | Up to (excluding) 4.19.171-2~deb9u1 | |||||
运行在以下环境 | |||||||||
系统 | debian_sid | linux | * | Up to (excluding) 5.5.13-1 | |||||
运行在以下环境 | |||||||||
系统 | kylinos_aarch64_V10SP2 | kernel | * | Up to (excluding) 4.19.90-25.11.v2101.ky10 | |||||
运行在以下环境 | |||||||||
系统 | kylinos_x86_64_V10SP2 | kernel | * | Up to (excluding) 4.19.90-25.11.v2101.ky10 | |||||
运行在以下环境 | |||||||||
系统 | linux | linux_kernel | * | Up to (including) 5.4.9 | |||||
运行在以下环境 | |||||||||
系统 | opensuse_Leap_15.2 | kernel | * | Up to (excluding) 5.3.18-lp152.63.1 | |||||
运行在以下环境 | |||||||||
系统 | oracle_7 | kernel | * | Up to (excluding) 5.4.17-2036.103.3.el7uek | |||||
运行在以下环境 | |||||||||
系统 | oracle_8 | kernel | * | Up to (excluding) 5.4.17-2036.103.3.el8 | |||||
运行在以下环境 | |||||||||
系统 | suse_12_SP5 | kernel | * | Up to (excluding) 4.12.14-122.60.1 | |||||
运行在以下环境 | |||||||||
系统 | ubuntu_16.04.7_lts | linux | * | Up to (excluding) 4.2.0-16.19 | |||||
运行在以下环境 | |||||||||
系统 | ubuntu_18.04 | linux-hwe-5.4 | * | Up to (excluding) 5.4.0-1037.40~18.04.1 | |||||
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 | linux-bluefield | * | Up to (excluding) 5.4.0-1036.38 | |||||
运行在以下环境 | |||||||||
系统 | unionos_d | kernel | * | Up to (excluding) 4.19.90-5035 | |||||
- 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 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
CWE-ID | 漏洞类型 |
CWE-125 | 跨界内存读 |
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