中危 二次运行时，格式错误的 PDF 在 pypdf 中缺少外部参照标记 (CVE-2023-36810)
CVE编号
CVE-2023-36810利用情况
暂无补丁情况
官方补丁披露时间
2023-07-01漏洞描述
pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. This issue has been addressed in PR 808 and versions from 1.27.9 include this fix. Users are advised to upgrade. There are no known workarounds for this vulnerability.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 | pypdf_project | pypdf | * | Up to (including) 1.27.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | pypdf2 | * | Up to (excluding) 1.26.0-2+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | pypdf2 | * | Up to (including) 1.26.0-4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | pypdf2 | * | Up to (excluding) 1.27.9-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | pypdf2 | * | Up to (excluding) 1.27.9-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | pypdf2 | * | Up to (excluding) 1.26.0-3ubuntu1.20.04.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | pypdf2 | * | Up to (excluding) 1.26.0-4ubuntu0.22.04.2 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 普通权限
- 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
| CWE-ID | 漏洞类型 |
| CWE-407 | 算法复杂性 |
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