CVE编号
CVE-2021-3672利用情况
暂无补丁情况
官方补丁披露时间
2021-08-10漏洞描述
libcares2是openSUSE项目的一个 C 库，可以异步执行 DNS 请求和名称解析。 libcares2 存在安全漏洞，该漏洞源于对主机名的输入验证不当。解决建议
这个缺陷存在于以下版本的c-ares。-受影响的版本:c-ares 1.0.0到1.17.1
-不受影响的版本:c-ares >= 1.17.2
补丁
https://github.com/c-ares/c-ares/compare/809d5e8..44c009b.patch
参考链接 |
|
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1988342 | |
| https://c-ares.haxx.se/adv_20210810.html | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf | |
| https://seclists.org/oss-sec/2021/q3/84 |
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 | c-ares_project | c-ares | * |
From (including) 1.0.0 |
Up to (excluding) 1.17.2 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | c-ares | * |
Up to (excluding) 14.17.5-1.1.al8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | c-ares | * |
Up to (excluding) 12.22.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | c-ares | * |
Up to (excluding) 12.22.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | c-ares | * |
Up to (excluding) 14.17.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | c-ares | * |
Up to (excluding) 14.17.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | c-ares | * |
Up to (excluding) 16.6.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | c-ares | * |
Up to (excluding) 16.6.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | c-ares | * |
Up to (excluding) 1.17.2-1.8.amzn1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | c-ares | * |
Up to (excluding) 14.17.5-1.module+el8.4.0+12247+e2879e58 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | c-ares | * |
Up to (excluding) 1.14.0-1+deb10u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | c-ares | * |
Up to (excluding) 1.17.1-1+deb11u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | c-ares | * |
Up to (excluding) 1.12.0-1+deb9u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | c-ares | * |
Up to (excluding) 1.17.2-1.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | c-ares | * |
Up to (excluding) 1.17.2-1.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | c-ares | * |
Up to (excluding) 4.0.0-5.fc35 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | c-ares | * |
Up to (excluding) 1.17.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | c-ares | * |
Up to (excluding) 10.24.1-lp152.2.18.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | c-ares | * |
Up to (excluding) 12.22.5-lp152.3.18.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | c-ares | * |
Up to (excluding) 1.17.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | c-ares | * |
Up to (excluding) 10.24.1-1.39.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | c-ares | * |
Up to (excluding) 12.22.5-4.19.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | c-ares | * |
Up to (excluding) 14.17.5-5.15.5 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | c-ares | * |
Up to (excluding) 12.22.5-1.module+el8.4.0+20308+065a70e3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | c-ares | * |
Up to (excluding) 2.0.3-1.module+el8.3.0+6519+9f98ed83 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | c-ares | * |
Up to (excluding) 1.9.1-9.7.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | c-ares | * |
Up to (excluding) 1.10.0-3ubuntu0.2+esm1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | c-ares | * |
Up to (excluding) 1.14.0-1ubuntu0.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | c-ares | * |
Up to (excluding) 1.15.0-1ubuntu0.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | c-ares | * |
Up to (excluding) 1.17.1-1ubuntu0.1 |
|||||
- 攻击路径 远程
- 攻击复杂度 困难
- 权限要求 无需权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 传输被破坏
- 服务器危害 DoS
- 全网数量 N/A
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