中危 samba samba 空指针解引用
CVE编号
CVE-2021-3671利用情况
暂无补丁情况
官方补丁披露时间
2021-10-13漏洞描述
Samba是用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba 4.13.12之前版本及4.14.0-4.14.8版本在处理TGS-REQ(票据授予服务器请求)中丢失的sname时存在空指针解引用漏洞。经过身份认证的攻击者可利用该漏洞导致拒绝服务。 受影响系统： Samba Samba >= 4.14.0 Samba Samba < 4.14.8 Samba Samba < 4.13.12解决建议
目前厂商已经发布了升级补丁以修复这个安全问题，补丁获取链接：https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a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 | * | Up to (excluding) 4.13.12 | |||||
| 运行在以下环境 | |||||||||
| 应用 | samba | samba | * | From (including) 4.14.0 | Up to (excluding) 4.14.8 | ||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | heimdal | * | Up to (excluding) 4.14.8-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | heimdal | * | Up to (excluding) 4.15.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | heimdal | * | Up to (excluding) 4.15.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | heimdal | * | Up to (excluding) 4.15.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | heimdal | * | Up to (excluding) 4.15.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | heimdal | * | Up to (excluding) 4.15.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | heimdal | * | Up to (including) 4.9.5+dfsg-5+deb10u3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | heimdal | * | Up to (excluding) 2:4.13.13+dfsg-1~deb11u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | heimdal | * | Up to (excluding) 2:4.13.13+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | heimdal | * | Up to (including) 4.5.16+dfsg-1+deb9u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | heimdal | * | Up to (excluding) 2:4.13.13+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | heimdal-workstation-debuginfo | * | Up to (excluding) 7.7.1-1.fc35 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_36 | heimdal-devel-debuginfo | * | Up to (excluding) 7.7.1-3.fc36 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_37 | heimdal-workstation-debuginfo | * | Up to (excluding) 7.7.1-1.fc37 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_7 | heimdal-path | * | Up to (excluding) 7.7.1-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_EPEL_8 | heimdal-workstation | * | Up to (excluding) 7.7.1-1.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP1 | ctdb | * | Up to (excluding) 4.11.12-8.p02.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | ctdb | * | Up to (excluding) 4.11.12-8.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP1 | ctdb | * | Up to (excluding) 4.11.12-8.p02.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP1 | ctdb | * | Up to (excluding) 4.11.12-8.p02.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | ctdb | * | Up to (excluding) 4.11.12-8.p01.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | libkrb5 | * | Up to (excluding) 7.8.0-bp153.2.4.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | libkrb5 | * | Up to (excluding) 7.8.0-bp154.2.4.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | heimdal | * | Up to (excluding) 7.5.0+dfsg-1ubuntu0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | heimdal | * | Up to (excluding) 2:4.13.14+dfsg-0ubuntu0.20.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | samba | * | Up to (excluding) 2:4.13.14+dfsg-0ubuntu0.21.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.10 | samba | * | Up to (excluding) 2:4.13.14+dfsg-0ubuntu0.21.10.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | samba | * | Up to (excluding) 2:4.13.14+dfsg-0ubuntu1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.10 | samba | * | Up to (excluding) 2:4.13.14+dfsg-0ubuntu1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_d | heimdal | * | Up to (excluding) 7.5.0+dfsg-3+deb10u1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 普通权限
- 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 服务器失陷
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-476 | 空指针解引用 |
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