低危 GRUB2堆栈缓冲区溢出漏洞
CVE编号
CVE-2020-14311利用情况
暂无补丁情况
官方补丁披露时间
2020-08-01漏洞描述
grub2是GNU计划的一款Linux系统引导程序。<br /> grub2 2.06之前版本在处理ext文件系统上的符号链接时存在堆栈缓冲区溢出漏洞。本地攻击者可利用该漏洞造成程序算术溢出导致基于堆的缓冲区溢出，并执行任意代码。<br /> 解决建议
目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页：https://www.gnu.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 | |||||||||
| 应用 | gnu | grub2 | * | Up to (excluding) 2.06 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | fwupdate-devel | * | Up to (excluding) 2.02-0.86.1.al7.alnx | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | grub | * | Up to (excluding) 2.06-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | grub | * | Up to (excluding) 2.06-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | grub | * | Up to (excluding) 2.06-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | fwupd | * | Up to (excluding) 1.1.4-7.0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8.2 | fwupd | * | Up to (excluding) 1.1.4-7.0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_7 | grub2-i386-modules | * | Up to (excluding) 2.02-0.86.el7.centos | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | grub2-tools-efi | * | Up to (excluding) 2.02-87.el8_2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | grub2 | * | Up to (excluding) 2.02+dfsg1-20+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | grub2 | * | Up to (excluding) 2.04-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | grub2 | * | Up to (excluding) 2.04-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | grub2 | * | Up to (including) 2.02~beta3-5+deb9u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | grub2 | * | Up to (excluding) 2.04-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | grub2 | * | Up to (excluding) 2.02-lp151.21.21.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | grub2 | * | Up to (excluding) 2.04-lp152.7.3.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 2.02-0.81.0.3.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 2.02-82.0.2.el8_2.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_7 | shim-unsigned-ia32 | * | Up to (excluding) 2.02-0.86.el7_8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | grub2-tools-efi | * | Up to (excluding) 2.02-87.el8_2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | grub2-x86_64-xen | * | Up to (excluding) 2.02-12.31.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | grub2-unsigned | * | Up to (excluding) 1.66.26 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | grub2 | * | Up to (excluding) 2.02~beta2-36ubuntu3.26 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | grub2-unsigned | * | Up to (excluding) 2.04-1ubuntu47.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | grub2 | * | Up to (excluding) 2.02-2ubuntu8.16 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | grub2-unsigned | * | Up to (excluding) 2.04-1ubuntu47.4 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 管控权限
- 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
| CWE-ID | 漏洞类型 |
| CWE-122 | 堆缓冲区溢出 |
| CWE-190 | 整数溢出或超界折返 |
| CWE-787 | 跨界内存写 |
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