macidn punycode 缓冲区覆盖（CVE-2024-6874）
CVE编号
CVE-2024-6874利用情况
暂无补丁情况
N/A披露时间
2024-07-24漏洞描述
libcurl's URL API function [curl_url_get()](https://curl.se/libcurl/c/curl_url_get.html) offers punycode conversions, to and from IDN. Asking to convert a name that is exactly 256 bytes, libcurl ends up reading outside of a stack based buffer when built to use the *macidn* IDN backend. The conversion function then fills up the provided buffer exactly - but does not null terminate the string. This flaw can lead to stack contents accidently getting returned as part of the converted string.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 |
|
|---|---|
| http://www.openwall.com/lists/oss-security/2024/07/24/2 | |
| https://curl.se/docs/CVE-2024-6874.html | |
| https://curl.se/docs/CVE-2024-6874.json | |
| https://hackerone.com/reports/2604391 |
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 | |||||||||
| 系统 | alpine_3.17 | curl | * | Up to (excluding) 8.9.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | curl | * | Up to (excluding) 8.9.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.19 | curl | * | Up to (excluding) 8.9.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.20 | curl | * | Up to (excluding) 8.9.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | curl | * | Up to (excluding) 7.74.0-1.3+deb11u12 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | curl | * | Up to (excluding) 7.88.1-10+deb12u6 | |||||
- 攻击路径 N/A
- 攻击复杂度 N/A
- 权限要求 N/A
- 影响范围 N/A
- 用户交互 N/A
- 可用性 N/A
- 保密性 N/A
- 完整性 N/A
| CWE-ID | 漏洞类型 |
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