CVE编号
CVE-2019-17498利用情况
暂无补丁情况
官方补丁披露时间
2019-10-22漏洞描述
libssh2是一款实现SSH2协议的客户端C库，它能够执行远程命令、文件传输，同时为远程的程序提供安全的传输通道。 libssh2 1.9.0及之前版本中的packet.c文件的SSH_MSG_DISCONNECT逻辑存在输入验证错误漏洞。攻击者可借助特制的SSH服务器利用该漏洞泄露敏感信息或造成拒绝服务。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/libssh2/libssh2/pull/402/commits/1c6fa92b77e34d089493fe6d3e2c6c8775858b94
参考链接 |
|
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00026.html | |
| https://blog.semmle.com/libssh2-integer-overflow-CVE-2019-17498/ | |
| https://github.com/kevinbackhouse/SecurityExploits/tree/8cbdbbe6363510f7d9cee... | |
| https://github.com/libssh2/libssh2/blob/42d37aa63129a1b2644bf6495198923534322... | |
| https://github.com/libssh2/libssh2/commit/dedcbd106f8e52d5586b0205bc7677e4c9868f9c | |
| https://lists.debian.org/debian-lts-announce/2019/11/msg00010.html | |
| https://lists.debian.org/debian-lts-announce/2021/12/msg00013.html | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... |
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 | libssh2 | libssh2 | * |
Up to (including) 1.9.0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | libssh2 | * |
Up to (excluding) 1.8.0-4.1.al7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | libssh2 | * |
Up to (excluding) 1.9.0-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | libssh2 | * |
Up to (excluding) 1.4.3-12.amzn2.2.3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libssh2 | * |
Up to (excluding) 1.8.0-2.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libssh2 | * |
Up to (excluding) 1.8.0-2.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | libssh2 | * |
Up to (excluding) 1.4.3-4.1+deb8u6 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | libssh2 | * |
Up to (excluding) 1.7.0-1+deb9u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libssh2 | * |
Up to (excluding) 1.8.0-2.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_30 | libssh2 | * |
Up to (excluding) 1.9.0-3.fc30 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_31 | libssh2 | * |
Up to (excluding) 1.9.0-3.fc31 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | libssh2 | * |
Up to (excluding) 1-1.8.0-lp151.6.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | libssh2 | * |
Up to (excluding) 1-1.9.0-lp152.8.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | libssh2 | * |
Up to (excluding) 1.8.0-4.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP4 | libssh2 | * |
Up to (excluding) 1.4.3-20.14.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | libssh2 | * |
Up to (excluding) 1.4.3-20.14.1 |
|||||
- 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
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