低危 OpenLDAP 至 2.4.49 slapd filter.c Expression 资源消耗漏洞
CVE编号
CVE-2020-12243利用情况
暂无补丁情况
官方补丁披露时间
2020-04-29漏洞描述
在2.4.50之前的OpenLDAP中slapd中的filter.c中，带有嵌套boolean表达式的LDAP搜索过滤器会导致拒绝服务（守护程序崩溃）。解决建议
厂商已发布了漏洞修复程序，请及时关注更新：https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_4/CHANGES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 | openldap | openldap | * | Up to (excluding) 2.4.50 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | openldap-servers-sql | * | Up to (excluding) 2.4.44-22.1.al7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | openldap | * | Up to (excluding) 2.4.48-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | openldap | * | Up to (excluding) 2.4.48-r2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.8 | openldap | * | Up to (excluding) 2.4.48-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | openldap | * | Up to (excluding) 2.4.48-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | openldap | * | Up to (excluding) 2.4.50-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | openldap | * | Up to (excluding) 2.4.44-22.amzn2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_7 | openldap | * | Up to (excluding) 2.4.44-22.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | openldap | * | Up to (excluding) 2.4.47+dfsg-3+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | openldap | * | Up to (excluding) 2.4.50+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | openldap | * | Up to (excluding) 2.4.50+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | openldap | * | Up to (excluding) 2.4.40+dfsg-1+deb8u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | openldap | * | Up to (excluding) 2.4.44+dfsg-5+deb9u4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | openldap | * | Up to (excluding) 2.4.50+dfsg-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10 | openldap | * | Up to (excluding) 2.4.44-23.el7_9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10 | openldap | * | Up to (excluding) 2.4.44-23.el7_9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | libldap-data | * | Up to (excluding) 2.4.46-lp151.10.9.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 2.4.44-22.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_7 | openldap | * | Up to (excluding) 2.4.44-22.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12 | libldap-2_4-2 | * | Up to (excluding) 2.4.41-18.68 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP4 | libldap-2_4 | * | Up to (excluding) 2.4.41-18.68.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | libldap-2_4 | * | Up to (excluding) 2.4.41-18.68.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | openldap | * | Up to (excluding) 2.4.42+dfsg-2ubuntu3.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | openldap | * | Up to (excluding) 2.4.42+dfsg-2ubuntu3.8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | openldap | * | Up to (excluding) 2.4.45+dfsg-1ubuntu1.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | openldap | * | Up to (excluding) 2.4.45+dfsg-1ubuntu1.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | openldap | * | Up to (excluding) 2.4.49+dfsg-2ubuntu1.2 | |||||
- 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
| CWE-ID | 漏洞类型 |
| CWE-400 | 未加控制的资源消耗（资源穷尽） |
| CWE-674 | 未经控制的递归 |
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