CVE编号
CVE-2020-28196利用情况
暂无补丁情况
官方补丁披露时间
2020-11-06漏洞描述
MIT Kerberos是美国麻省理工（MIT）的一个用于在网络集群中进行身份验证的软件。Kerberos 同时作为一种网络认证协议，其设计目标是通过密钥系统为客户机 / 服务器应用程序提供强大的认证服务。 MIT Kerberos 5 (aka krb5) 1.17.2版本，1.18.x系列1.18.3之前版本存在安全漏洞，该漏洞源于lib/krb5/asn.1/asn1_encode.c对BER不定长度的支持没有递归限制。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/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfd | |
| https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db560... | |
| https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61... | |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00011.html | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://security.gentoo.org/glsa/202011-17 | |
| https://security.netapp.com/advisory/ntap-20201202-0001/ | |
| https://security.netapp.com/advisory/ntap-20210513-0002/ | |
| https://www.debian.org/security/2020/dsa-4795 | |
| https://www.oracle.com//security-alerts/cpujul2021.html | |
| https://www.oracle.com/security-alerts/cpuApr2021.html |
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 | mit | kerberos_5 | * |
Up to (excluding) 1.17.2 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | mit | kerberos_5 | * |
From (including) 1.18.0 |
Up to (excluding) 1.18.3 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | krb5 | * |
Up to (excluding) 1.17.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | krb5 | * |
Up to (excluding) 1.17.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | krb5 | * |
Up to (excluding) 1.18.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | krb5 | * |
Up to (excluding) 1.18.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | krb5 | * |
Up to (excluding) 1.18.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | krb5 | * |
Up to (excluding) 1.18.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | krb5 | * |
Up to (excluding) 1.15.5-r1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | krb5 | * |
Up to (excluding) 1.18.3-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | krb5 | * |
Up to (excluding) 1.18.2-8.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | krb5 | * |
Up to (excluding) 1.17-3+deb10u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | krb5 | * |
Up to (excluding) 1.17-10 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | krb5 | * |
Up to (excluding) 1.15-1+deb9u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | krb5 | * |
Up to (excluding) 1.17-10 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_31 | krb5 | * |
Up to (excluding) 1.17-47.fc31 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | krb5 | * |
Up to (excluding) 1.18.2-29.fc32 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | krb5 | * |
Up to (excluding) 1.18.2-29.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | krb5 | * |
Up to (excluding) 1.16.3-lp151.2.15.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | krb5 | * |
Up to (excluding) 1.16.3-lp152.5.13.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | krb5 | * |
Up to (excluding) 1.15.1-50.0.1.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | krb5 | * |
Up to (excluding) 1.18.2-8.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | krb5 | * |
Up to (excluding) 1.18.2-8.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | krb5 | * |
Up to (excluding) 1.12.5-40.40.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04 | krb5 | * |
Up to (excluding) 1.12+dfsg-2ubuntu5.4+esm2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | krb5 | * |
Up to (excluding) 1.13.2+dfsg-5ubuntu2.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | krb5 | * |
Up to (excluding) 1.16-2ubuntu0.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | krb5 | * |
Up to (excluding) 1.17-6ubuntu4.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_20 | krb5 | * |
Up to (excluding) 1.17.1-1+eagle |
|||||
- 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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