中危 httplib2 up to 0.18.x on Python Authentication Header resource consumption
CVE编号
CVE-2021-21240利用情况
POC 已公开补丁情况
官方补丁披露时间
2021-02-09漏洞描述
httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.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 | httplib2_project | httplib2 | * | Up to (excluding) 0.19.0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | py3-httplib2 | * | Up to (excluding) 0.19.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | python-httplib2 | * | Up to (including) 0.11.3-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | python-httplib2 | * | Up to (including) 0.18.1-3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | python-httplib2 | * | Up to (excluding) 0.20.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | python-httplib2 | * | Up to (including) 0.9.2+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | python-httplib2 | * | Up to (excluding) 0.20.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | python2-httplib2 | * | Up to (excluding) 0.19.0-lp152.6.3.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | python2-httplib2 | * | Up to (excluding) 0.19.0-3.3.1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 POC 已公开
- 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 DoS
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-400 | 未加控制的资源消耗（资源穷尽） |
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