低危 Squid拒绝服务漏洞
CVE编号
CVE-2020-24606利用情况
暂无补丁情况
官方补丁披露时间
2020-08-25漏洞描述
Squid是一套代理服务器和Web缓存服务器软件。该软件提供缓存万维网、过滤流量、代理上网等功能。4.13之前的Squid和5.0.4之前的5.x允许通过在处理特制的Cache Digest响应消息期间消耗所有可用的CPU周期来使受信任的对等方执行拒绝服务。仅当cache_peer与缓存摘要功能一起使用时，才会发生这种情况。存在此问题是因为peer_digest.cc中的peerDigestHandleReply()动态锁定错误处理了EOF。解决建议
厂商已发布了漏洞修复程序，请及时关注更新：https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg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 | squid-cache | squid | * | From (including) 3.0 | Up to (excluding) 4.13 | ||||
| 运行在以下环境 | |||||||||
| 应用 | squid-cache | squid | * | From (including) 5.0.1 | Up to (excluding) 5.0.4 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | squid | * | Up to (excluding) 3.5.20-17.1.al7.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | squid | * | Up to (excluding) 4.13-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | squid | * | Up to (excluding) 4.13-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | squid | * | Up to (excluding) 4.13-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | squid | * | Up to (excluding) 4.13-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | squid | * | Up to (excluding) 4.13.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | squid | * | Up to (excluding) 4.13-1.amzn2.0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | squid | * | Up to (excluding) 3.5.20-17.41.amzn1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | squid | * | Up to (excluding) 4.11-4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_7 | squid | * | Up to (excluding) 3.5.20-17.el7_9.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | libecap-debugsource | * | Up to (excluding) 4.11-3.module+el8.3.0+7851+7808b5f9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | squid | * | Up to (excluding) 4.6-1+deb10u4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | squid | * | Up to (excluding) 4.13-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | squid | * | Up to (excluding) 4.13-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | squid3 | * | Up to (excluding) 3.5.23-5+deb9u5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | squid | * | Up to (excluding) 4.13-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_31 | squid-debuginfo | * | Up to (excluding) 4.13-1.fc31 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | squid-debuginfo | * | Up to (excluding) 4.13-1.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | squid-debuginfo | * | Up to (excluding) 4.13-1.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10 | squid | * | Up to (excluding) 3.5.20-17.el7_9.4.ns7.01 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10 | squid | * | Up to (excluding) 3.5.20-17.el7_9.4.ns7.01 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | squid | * | Up to (excluding) 4.13-lp151.2.24.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | squid | * | Up to (excluding) 4.13-lp152.2.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 3.5.20-17.el7_9.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 1.0.1-2.module+el8.3.0+7819+eb7d4ef6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_7 | squid | * | Up to (excluding) 3.5.20-17.el7_9.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | libecap-debugsource | * | Up to (excluding) 4.11-3.module+el8.3.0+7851+7808b5f9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | squid | * | Up to (excluding) 4.13-4.15.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | squid3 | * | Up to (excluding) 3.5.12-1ubuntu7.15 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | squid3 | * | Up to (excluding) 3.5.12-1ubuntu7.15 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | squid3 | * | Up to (excluding) 3.5.27-1ubuntu1.9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | squid3 | * | Up to (excluding) 3.5.27-1ubuntu1.9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | squid | * | Up to (excluding) 4.10-1ubuntu1.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | squid | * | Up to (excluding) 4.13-1ubuntu1 | |||||
- 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 100
| CWE-ID | 漏洞类型 |
| CWE-20 | 输入验证不恰当 |
| CWE-667 | 加锁机制不恰当 |
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