中危 rpm rpm 在文件访问前对链接解析不恰当（链接跟随）
CVE编号
CVE-2021-35939利用情况
暂无补丁情况
没有补丁披露时间
2022-08-27漏洞描述
It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and 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 | |||||||||
| 应用 | rpm | rpm | * | Up to (excluding) 4.18 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | rpm | * | Up to (excluding) 4.18.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | rpm | * | Up to (excluding) 4.18.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | rpm | * | Up to (excluding) 4.18.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | rpm | * | Up to (including) 4.14.2.1+dfsg1-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | rpm | * | Up to (including) 4.16.1.2+dfsg1-3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | rpm | * | Up to (excluding) 4.18.0+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | rpm | * | Up to (including) 4.12.0.2+dfsg1-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | rpm | * | Up to (excluding) 4.18.0+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10 | python2-rpm | * | Up to (excluding) 4.15.1-37.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP1 | python2-rpm | * | Up to (excluding) 4.15.1-28.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | python2-rpm | * | Up to (excluding) 4.15.1-28.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP3 | python2-rpm | * | Up to (excluding) 4.15.1-37.p01.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10 | python2-rpm | * | Up to (excluding) 4.15.1-37.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP1 | python2-rpm | * | Up to (excluding) 4.15.1-28.p03.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | python2-rpm | * | Up to (excluding) 4.15.1-28.p02.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP3 | python2-rpm | * | Up to (excluding) 4.15.1-37.p01.ky10 | |||||
- 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 越权影响
- EXP成熟度 N/A
- 补丁情况 没有补丁
- 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
| CWE-ID | 漏洞类型 |
| CWE-59 | 在文件访问前对链接解析不恰当（链接跟随） |
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