CVE编号
CVE-2020-14343利用情况
暂无补丁情况
官方补丁披露时间
2021-02-10漏洞描述
A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.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 |
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|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1860466 |
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 | pyyaml | pyyaml | * |
Up to (excluding) 5.4 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | pyyaml | * |
Up to (excluding) 5.3.1-r1 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | pyyaml | * |
Up to (excluding) 5.3.1-r1 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | pyyaml | * |
Up to (excluding) 5.3.1-r2 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | pyyaml | * |
Up to (excluding) 5.4-r0 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | pyyaml | * |
Up to (excluding) 5.4-r0 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | pyyaml | * |
Up to (excluding) 5.4-r0 |
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| 运行在以下环境 | |||||||||
| 系统 | centos_8 | pyyaml | * |
Up to (excluding) 3.8.6-3.module+el8.4.0+9579+e9717e18 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_11 | pyyaml | * |
Up to (excluding) 5.3.1-3 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_sid | pyyaml | * |
Up to (excluding) 5.3.1-3 |
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| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | pyyaml | * |
Up to (excluding) 5.4.1-1.fc32 |
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| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | pyyaml | * |
Up to (excluding) 5.4.1-1.fc33 |
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| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | pyyaml | * |
Up to (excluding) 5.6.4-3.module+el8.4.0+20068+32a535e2 |
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| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | pyyaml | * |
Up to (excluding) 3.8.6-3.module+el8.4.0+9579+e9717e18 |
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| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | pyyaml | * |
Up to (excluding) 5.3.1-28.6.1 |
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| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | pyyaml | * |
Up to (excluding) 5.3.1-1ubuntu0.1 |
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| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | pyyaml | * |
Up to (excluding) 5.3.1-3ubuntu1 |
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| 运行在以下环境 | |||||||||
| 系统 | unionos_20 | pyyaml | * |
Up to (excluding) 3.13-2 |
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- 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 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 100
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