中危 cryptography Package up to 3.3.1 on Python Multi-GB Value Update 整数溢出漏洞
CVE编号
CVE-2020-36242利用情况
暂无补丁情况
官方补丁披露时间
2021-02-08漏洞描述
In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.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 | cryptography_project | cryptography | * | Up to (excluding) 3.3.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | py3-cryptography | * | Up to (excluding) 3.3.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | py3-cryptography | * | Up to (excluding) 3.2.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | py3-cryptography | * | Up to (excluding) 3.2.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | py3-cryptography | * | Up to (excluding) 3.2.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | py3-cryptography | * | Up to (excluding) 3.2.2-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | python3-cryptography-debuginfo | * | Up to (excluding) 3.2.1-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | python-cryptography | * | Up to (including) 2.6.1-3+deb10u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | python-cryptography | * | Up to (excluding) 3.3.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | python-cryptography | * | Up to (excluding) 3.3.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | python-cryptography | * | Up to (excluding) 3.3.2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | python3-cryptography-debuginfo | * | Up to (excluding) 3.2.1-2.fc33 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | python3-cryptography-debuginfo | * | Up to (excluding) 3.4.1-1.fc34 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_loongarch64_V10SP1 | python-cryptography-help | * | Up to (excluding) 2.9.2-2.a.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | python3-cryptography | * | Up to (excluding) 2.8-lp152.2.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | python3-knack | * | Up to (excluding) 15.1.0-150000.3.4.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 3.2.1-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | python3-cryptography-debuginfo | * | Up to (excluding) 3.2.1-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | python3-cryptography | * | Up to (excluding) 2.1.4-7.34.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | python-cryptography | * | Up to (excluding) 1.2.3-1ubuntu0.3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | python-cryptography | * | Up to (excluding) 2.1.4-1ubuntu1.4 | |||||
- 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 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 传输被破坏
- 服务器危害 服务器失陷
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-120 | 未进行输入大小检查的缓冲区拷贝（传统缓冲区溢出） |
| CWE-190 | 整数溢出或超界折返 |
| CWE-787 | 跨界内存写 |
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