CVE编号
CVE-2021-28041利用情况
暂无补丁情况
没有补丁披露时间
2021-03-06漏洞描述
ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host.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。
参考链接 |
|
|---|---|
| https://github.com/openssh/openssh-portable/commit/e04fd6dde16de1cdc5a4d99463... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://security.gentoo.org/glsa/202105-35 | |
| https://security.netapp.com/advisory/ntap-20210416-0002/ | |
| https://www.openssh.com/security.html | |
| https://www.openssh.com/txt/release-8.5 | |
| https://www.openwall.com/lists/oss-security/2021/03/03/1 |
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 | openbsd | openssh | * |
Up to (excluding) 8.5 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | openssh | * |
Up to (excluding) 8.3_p1-r2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | openssh | * |
Up to (excluding) 8.4_p1-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | openssh | * |
Up to (excluding) 8.5_p1-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | openssh | * |
Up to (excluding) 8.5_p1-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | openssh | * |
Up to (excluding) 8.5_p1-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | openssh | * |
Up to (excluding) 8.4p1-7.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | openssh | * |
Up to (excluding) 34.0-9.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | openssh | * |
Up to (excluding) 3.9.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | openssh | * |
Up to (excluding) 1:8.2p1-4ubuntu0.2 |
|||||
- 攻击路径 远程
- 攻击复杂度 困难
- 权限要求 普通权限
- 影响范围 全局影响
- EXP成熟度 N/A
- 补丁情况 没有补丁
- 数据保密性 数据泄露
- 数据完整性 传输被破坏
- 服务器危害 服务器失陷
- 全网数量 N/A
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