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。
参考链接 |
|
|---|---|
| https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst | |
| https://github.com/pyca/cryptography/compare/3.3.1...3.3.2 | |
| https://github.com/pyca/cryptography/issues/5615 | |
| https://lists.fedoraproject.org/archives/list/[email protected]... |
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_edge | py3-cryptography | * |
Up to (excluding) 3.2.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | py3-cryptography | * |
Up to (excluding) 3.2.1-4.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | python-cryptography | * |
Up to (excluding) 2.6.1-3+deb10u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | python-cryptography | * |
Up to (excluding) 3.3.1-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | python-cryptography | * |
Up to (excluding) 3.2.1-2.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | python-cryptography | * |
Up to (excluding) 3.4.1-1.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | python-cryptography | * |
Up to (excluding) 2.8-lp152.2.6.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | py3-cryptography | * |
Up to (excluding) 3.2.1-4.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | py3-cryptography | * |
Up to (excluding) 3.2.1-4.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | python-cryptography | * |
Up to (excluding) 2.1.4-7.34.1 |
|||||
- 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 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
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