中危 linux linux_kernel 内存缓冲区边界内操作的限制不恰当
CVE编号
CVE-2020-27815利用情况
暂无补丁情况
官方补丁披露时间
2021-05-26漏洞描述
A flaw was found in the JFS filesystem code in the Linux Kernel which allows a local attacker with the ability to set extended attributes to panic the system, causing memory corruption or escalating privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as 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。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) 5.4.91-41.139.amzn2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | kernel | * | Up to (excluding) 4.14.214-118.339.amzn1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian | debian_linux | 10.0 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian | debian_linux | 9.0 | - | |||||
| 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) 5.10.4-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | linux | * | Up to (excluding) 5.10.4-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | linux | * | Up to (excluding) 4.9.258-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | linux | * | Up to (excluding) 5.10.4-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | 5.9.6 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | kernel | * | Up to (excluding) 5.3.18-lp152.3.8.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | kernel | * | Up to (excluding) 5.3.18-59.5.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | kernel | * | Up to (excluding) 4.12.14-122.66.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | linux | * | Up to (excluding) 4.4.0-1088.97 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | linux | * | Up to (excluding) 4.4.0-203.235 | |||||
| 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) 4.15.0-136.140 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | linux-bluefield | * | Up to (excluding) 5.4.0-1036.38 | |||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 全局影响
- 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 传输被破坏
- 服务器危害 DoS
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-119 | 内存缓冲区边界内操作的限制不恰当 |
| CWE-787 | 跨界内存写 |
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