CVE编号
CVE-2020-27840利用情况
暂无补丁情况
官方补丁披露时间
2021-05-12漏洞描述
Samba是Samba团队的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。 Samba 存在安全漏洞，攻击者可利用该漏洞通过DN Strings触发内存损坏，从而触发拒绝服务，并可能运行代码。解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://www.samba.org/samba/security/CVE-2020-27840.html
参考链接 |
|
|---|---|
| https://access.redhat.com/security/cve/cve-2020-27840 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1941400 | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00036.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/202105-22 | |
| https://security.netapp.com/advisory/ntap-20210326-0007/ | |
| https://vigilance.fr/vulnerability/Samba-memory-corruption-via-DN-Strings-34930 | |
| https://www.debian.org/security/2021/dsa-4884 | |
| https://www.samba.org/samba/security/CVE-2020-27840.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 | samba | samba | * |
From (including) 4.0.0 |
Up to (excluding) 4.12.13 |
||||
| 运行在以下环境 | |||||||||
| 应用 | samba | samba | * |
From (including) 4.13.0 |
Up to (excluding) 4.13.6 |
||||
| 运行在以下环境 | |||||||||
| 应用 | samba | samba | * |
From (including) 4.14.0 |
Up to (excluding) 4.14.1 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | ldb | * |
Up to (excluding) 4.12.14-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | ldb | * |
Up to (excluding) 4.13.7-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | ldb | * |
Up to (excluding) 4.14.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | ldb | * |
Up to (excluding) 4.14.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | ldb | * |
Up to (excluding) 4.14.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | ldb | * |
Up to (excluding) 4.9.5+dfsg-5+deb10u3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | ldb | * |
Up to (excluding) 4.13.13+dfsg-1~deb11u3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | ldb | * |
Up to (excluding) 4.13.14+dfsg-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | ldb | * |
Up to (excluding) 4.5.16+dfsg-1+deb9u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | ldb | * |
Up to (excluding) 4.16.0+dfsg-6 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | ldb | * |
Up to (excluding) 2.1.5-1.fc32 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | ldb | * |
Up to (excluding) 2.2.1-1.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | ldb | * |
Up to (excluding) 2.3.0-1.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | ldb | * |
Up to (excluding) 2.0.12-lp152.2.9.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | ldb | * |
Up to (excluding) 4.13.6 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04 | ldb | * |
Up to (excluding) 1:1.1.24-0ubuntu0.14.04.2+esm1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04.6_lts | ldb | * |
Up to (excluding) 1:1.1.24-0ubuntu0.14.04.2+esm1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | ldb | * |
Up to (excluding) 2:1.1.24-1ubuntu3.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | ldb | * |
Up to (excluding) 2:1.1.24-1ubuntu3.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | ldb | * |
Up to (excluding) 2:1.2.3-1ubuntu0.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | ldb | * |
Up to (excluding) 2:1.2.3-1ubuntu0.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | ldb | * |
Up to (excluding) 2:2.0.10-0ubuntu0.20.04.3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_20 | ldb | * |
Up to (excluding) 1.5.1+really1.4.6.2-1+security |
|||||
- 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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