中危 gnupg libgcrypt 使用已被攻破或存在风险的密码学算法
CVE编号
CVE-2021-40528利用情况
POC 已公开补丁情况
官方补丁披露时间
2021-09-07漏洞描述
The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP.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 | gnupg | libgcrypt | * | Up to (excluding) 1.9.4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | libgcrypt | * | Up to (excluding) 1.8.8-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | libgcrypt | * | Up to (excluding) 1.8.8-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | libgcrypt | * | Up to (excluding) 1.8.8-r1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | libgcrypt-devel | * | Up to (excluding) 1.8.5-7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | libgcrypt-debuginfo | * | Up to (excluding) 1.8.5-7.el8_6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libgcrypt20 | * | Up to (excluding) 1.8.4-5+deb10u1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libgcrypt20 | * | Up to (excluding) 1.8.7-6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | libgcrypt20 | * | Up to (excluding) 1.8.7-6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | libgcrypt20 | * | Up to (excluding) 1.7.6-2+deb9u4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libgcrypt20 | * | Up to (excluding) 1.8.7-6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10 | libgcrypt | * | Up to (excluding) 1.8.5-7.el8_6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP1 | libgcrypt | * | Up to (excluding) 1.8.6-4.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | libgcrypt | * | Up to (excluding) 1.8.6-4.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP1 | libgcrypt | * | Up to (excluding) 1.8.6-4.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10 | libgcrypt | * | Up to (excluding) 1.8.5-7.el8_6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP1 | libgcrypt | * | Up to (excluding) 1.8.6-4.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | libgcrypt | * | Up to (excluding) 1.8.6-4.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 1.8.5-7.el8_6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | libgcrypt-debuginfo | * | Up to (excluding) 1.8.5-7.el8_6 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | libgcrypt20 | * | Up to (excluding) 1.8.1-4ubuntu1.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | libgcrypt20 | * | Up to (excluding) 1.8.1-4ubuntu1.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | libgcrypt20 | * | Up to (excluding) 1.8.5-5ubuntu1.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | libgcrypt20 | * | Up to (excluding) 1.8.7-2ubuntu2.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.10 | libgcrypt20 | * | Up to (excluding) 1.8.7-5ubuntu2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | libgcrypt20 | * | Up to (excluding) 1.8.7-5ubuntu2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.10 | libgcrypt20 | * | Up to (excluding) 1.8.7-5ubuntu2 | |||||
- 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 全局影响
- EXP成熟度 POC 已公开
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 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 |
Exp相关链接
- avd.aliyun.com
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