中危 使用已被攻破或存在风险的密码学算法
CVE编号
CVE-2021-36647利用情况
暂无补丁情况
官方补丁披露时间
2023-01-18漏洞描述
Use of a Broken or Risky Cryptographic Algorithm in the function mbedtls_mpi_exp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.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/ARMmbed/mbedtls/releases/ | |
| https://kouzili.com/Load-Step.pdf | |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-adviso... |
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) 2.16.11 | |||||
| 运行在以下环境 | |||||||||
| 应用 | arm | mbed_tls | * | From (including) 2.17.0 | Up to (excluding) 2.27.0 | ||||
| 运行在以下环境 | |||||||||
| 应用 | arm | mbed_tls | * | From (including) 2.28.0 | Up to (excluding) 3.0.0 | ||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | mbedtls | * | Up to (including) 2.16.0-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | mbedtls | * | Up to (including) 2.16.9-0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | mbedtls | * | Up to (excluding) 2.16.11-0.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | mbedtls | * | Up to (excluding) 2.16.11-0.1 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 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 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-327 | 使用已被攻破或存在风险的密码学算法 |
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