低危 privoxy privoxy 内存缓冲区边界内操作的限制不恰当
CVE编号
CVE-2021-20275利用情况
EXP 已公开补丁情况
官方补丁披露时间
2021-03-10漏洞描述
A flaw was found in privoxy before 3.0.32. A invalid read of size two may occur in chunked_body_is_complete() leading to denial of service.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 | privoxy | privoxy | * | Up to (excluding) 3.0.32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | privoxy | * | Up to (excluding) 3.0.32-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | privoxy | * | Up to (excluding) 3.0.23-2.17.amzn1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | privoxy | * | Up to (excluding) 3.0.28-2+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | privoxy | * | Up to (excluding) 3.0.32-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | privoxy | * | Up to (excluding) 3.0.32-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | privoxy | * | Up to (excluding) 3.0.26-3+deb9u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | privoxy | * | Up to (excluding) 3.0.32-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | privoxy | * | Up to (excluding) 3.0.32-1.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | privoxy | * | Up to (excluding) 3.0.32-1.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | privoxy | * | Up to (excluding) 3.0.32-1.fc34 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | privoxy | * | Up to (excluding) 3.0.32-1.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | privoxy | * | Up to (excluding) 3.0.32-lp152.3.9.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | privoxy | * | Up to (excluding) 3.0.24-1ubuntu0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | privoxy | * | Up to (excluding) 3.0.24-1ubuntu0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | privoxy | * | Up to (excluding) 3.0.26-5ubuntu0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | privoxy | * | Up to (excluding) 3.0.26-5ubuntu0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | privoxy | * | Up to (excluding) 3.0.28-2ubuntu0.1 | |||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 有限影响
- EXP成熟度 EXP 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 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-119 | 内存缓冲区边界内操作的限制不恰当 |
| CWE-125 | 跨界内存读 |
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