CVE-2023-38545— curl 缓冲区错误漏洞
一分钟漏洞结论
影响对象
curl curl
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
curl是一款用于从服务器传输数据或向服务器传输数据的工具。 curl 7.69.0至8.3.0版本存在安全漏洞，该漏洞源于SOCKS5存在堆栈溢出漏洞。
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application
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一、 漏洞 CVE-2023-38545 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy
handshake.
When curl is asked to pass along the host name to the SOCKS5 proxy to allow
that to resolve the address instead of it getting done by curl itself, the
maximum length that host name can be is 255 bytes.
If the host name is detected to be longer, curl switches to local name
resolving and instead passes on the resolved address only. Due to this bug,
the local variable that means "let the host resolve the name" could get the
wrong value during a slow SOCKS5 handshake, and contrary to the intention,
copy the too long host name to the target buffer instead of copying just the
resolved address there.
The target buffer being a heap based buffer, and the host name coming from the
URL that curl has been told to operate with.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
curl 缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
curl是一款用于从服务器传输数据或向服务器传输数据的工具。 curl 7.69.0至8.3.0版本存在安全漏洞，该漏洞源于SOCKS5存在堆栈溢出漏洞。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2023-38545 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | Simple PoC causing overflow | https://github.com/UTsweetyfish/CVE-2023-38545 | POC详情 |
| 2 | 😄 CVE-2023-38545堆溢出的POC和分析文章 | https://github.com/imfht/CVE-2023-38545 | POC详情 |
| 3 | Simple PoC causing overflow | https://github.com/fatmo666/CVE-2023-38545-libcurl-SOCKS5-heap-buffer-overflow | POC详情 |
| 4 | Dockerfile containing all the necessary setup files to demo the exploit | https://github.com/vanigori/CVE-2023-38545-sample | POC详情 |
| 5 | CVE-2023-38545 POC for the curl command line tool | https://github.com/dbrugman/CVE-2023-38545-POC | POC详情 |
| 6 | A proof of concept for testing CVE-2023-38545 against local curl | https://github.com/bcdannyboy/CVE-2023-38545 | POC详情 |
| 7 | socks5 heap buffer overflow | https://github.com/d0rb/CVE-2023-38545 | POC详情 |
| 8 | None | https://github.com/Yang-Shun-Yu/CVE-2023-38545 | POC详情 |
| 9 | Network Security Project CVE-2023-38545 | https://github.com/nphuang/NS-Project-2024-Spring | POC详情 |
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CVE-2023-38545 厂商安全公告 (6)
CVE-2023-38545 邮件列表归档 (4)
CVE-2023-38545 安全博客文章 (1)
CVE-2023-38545 其他参考 (2)
IV. Related Vulnerabilities
V. Comments for CVE-2023-38545
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