CVE编号
CVE-2020-28018利用情况
暂无补丁情况
官方补丁披露时间
2021-05-06漏洞描述
Exim是在剑桥大学开发的消息传输代理（MTA），用于连接到互联网的Unix系统。Exim中的smtp_reset在通过OpenSSL提供TLS加密时存在释放后重用漏洞，攻击者可利用该漏洞实现远程代码执行。
解决建议
厂商已发布了漏洞修复程序，请及时关注更新：https://www.exim.org/
参考链接 |
|
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/11/14 | |
| http://www.openwall.com/lists/oss-security/2021/05/11/15 | |
| http://www.openwall.com/lists/oss-security/2021/05/11/17 | |
| http://www.openwall.com/lists/oss-security/2021/05/11/5 | |
| http://www.openwall.com/lists/oss-security/2021/05/11/6 | |
| http://www.openwall.com/lists/oss-security/2021/05/12/2 | |
| http://www.openwall.com/lists/oss-security/2021/05/12/3 | |
| https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt |
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 | exim | exim | * |
From (including) 4.90 |
Up to (excluding) 4.94.2 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | exim | * |
Up to (excluding) 4.94.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | exim | * |
Up to (excluding) 4.94.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | exim | * |
Up to (excluding) 4.94.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | exim | * |
Up to (excluding) 4.94.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | exim | * |
Up to (excluding) 4.92-1.27.amzn1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | exim | * |
Up to (excluding) 4.92-8+deb10u6 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | exim | * |
Up to (excluding) 4.94.2-lp152.8.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | exim | * |
Up to (excluding) 4.90.1-1ubuntu1.8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | exim4 | * |
Up to (excluding) 4.90.1-1ubuntu1.8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | exim | * |
Up to (excluding) 4.93-13ubuntu1.5 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | exim | * |
Up to (excluding) 4.94-15ubuntu1.2 |
|||||
- 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 N/A
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