CVE编号
CVE-2021-41816利用情况
暂无补丁情况
官方补丁披露时间
2021-11-29漏洞描述
Ruby是松本行弘个人开发者的一种跨平台、面向对象的动态类型编程语言。Ruby 3.0.3之前版本存在缓冲区错误漏洞，该漏洞源于在传递非常大的数据时会导致缓冲区溢出字符串（＞700 MB）到CGI.escape_html。
解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_html-cve-2021-41816/
参考链接 |
|
|---|---|
| https://access.redhat.com/security/cve/cve-2021-41816 | |
| https://hackerone.com/reports/1328463 | |
| https://security-tracker.debian.org/tracker/CVE-2021-41816 | |
| https://security.netapp.com/advisory/ntap-20220303-0006/ | |
| https://www.auscert.org.au/bulletins/ESB-2021.4000 | |
| https://www.cybersecurity-help.cz/vdb/SB2021112503 | |
| https://www.ruby-lang.org/en/news/2021/11/24/buffer-overrun-in-cgi-escape_htm... |
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 | ruby-lang | cgi | * |
Up to (excluding) 0.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ruby-lang | cgi | * |
Up to (including) 0.1.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ruby-lang | cgi | * |
Up to (including) 0.2.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ruby-lang | ruby | * |
From (including) 2.7.0 |
Up to (excluding) 2.7.5 |
||||
| 运行在以下环境 | |||||||||
| 应用 | ruby-lang | ruby | * |
From (including) 3.0.0 |
Up to (excluding) 3.0.3 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | ruby | * |
Up to (excluding) 2.7.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | ruby | * |
Up to (excluding) 2.7.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | ruby | * |
Up to (excluding) 2.7.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | ruby | * |
Up to (excluding) 3.0.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | ruby | * |
Up to (excluding) 3.0.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | ruby | * |
Up to (excluding) 2.5.5-3+deb10u3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | ruby | * |
Up to (excluding) 2.7.4-1+deb11u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | ruby | * |
Up to (excluding) 2.7.4-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | ruby | * |
Up to (excluding) 2.3.3-1+deb9u8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | ruby | * |
Up to (excluding) 3.0.2-7 |
|||||
- 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 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 N/A
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