CVE编号
CVE-2021-21391利用情况
暂无补丁情况
官方补丁披露时间
2021-04-06漏洞描述
CKEditor是一套开源的、基于网页的文字编辑器。CKEditor 5 存在资源管理错误漏洞，该漏洞源于一个正则表达式拒绝服务（ReDoS）漏洞。该漏洞允许滥用特定的正则表达式，这可能会导致性能显着下降，从而导致浏览器选项卡冻结。
解决建议
目前厂商已发布升级补丁已修复漏洞，补丁获取链接为：https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-3rh3-wfr4-76mj
参考链接 |
|
|---|---|
| https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-3rh3-wfr4-76mj | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-engine | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-font | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-image | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-list | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-markdown-gfm | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-media-embed | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-paste-from-office | |
| https://www.npmjs.com/package/@ckeditor/ckeditor5-widget |
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 | ckeditor | ckeditor5-engine | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-font | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-image | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-list | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-markdown-gfm | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-media-embed | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-paste-from-office | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | ckeditor | ckeditor5-widget | * |
Up to (excluding) 27.0.0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | ckeditor | * |
Up to (excluding) 4.11.1+dfsg-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | ckeditor | * |
Up to (excluding) 4.16.0+dfsg-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | ckeditor | * |
Up to (excluding) 4.16.2+dfsg-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | ckeditor | * |
Up to (excluding) 4.5.7+dfsg-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | ckeditor | * |
Up to (excluding) 4.16.2+dfsg-1 |
|||||
- 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 N/A
- 数据完整性 N/A
- 服务器危害 N/A
- 全网数量 N/A
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