中危 arm mbed_tls 证书验证不恰当
CVE编号
CVE-2020-36478利用情况
暂无补丁情况
官方补丁披露时间
2021-08-23漏洞描述
An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). A NULL algorithm parameters entry looks identical to an array of REAL (size zero) and thus the certificate is considered valid. However, if the parameters do not match in any way, then the certificate should be considered invalid.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。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 | arm | mbed_tls | * | Up to (excluding) 2.7.18 | |||||
| 运行在以下环境 | |||||||||
| 应用 | arm | mbed_tls | * | From (including) 2.17.0 | Up to (excluding) 2.25.0 | ||||
| 运行在以下环境 | |||||||||
| 应用 | arm | mbed_tls | * | From (including) 2.8.0 | Up to (excluding) 2.16.9 | ||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | mbedtls | * | Up to (excluding) 2.16.9-0~deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | mbedtls | * | Up to (excluding) 2.16.9-0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | mbedtls | * | Up to (excluding) 2.16.9-0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | mbedtls | * | Up to (excluding) 2.4.2-1+deb9u4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | mbedtls | * | Up to (excluding) 2.16.9-0.1 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 影响范围 全局影响
- 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 传输被破坏
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-295 | 证书验证不恰当 |
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