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passive FTPS data connection handshake blocks curl_multi_perform() with no timeout (regression in 8.19.0)

拒绝服务 / 资源消耗失控 / #4122567

厂商
curl
严重程度
低危
赏金
—
弱点
资源消耗失控
研究员
@1rhino2
披露日期
2026-10-23
资产
https://github.com/curl/curl
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(4670 字符中的一小部分)
Summary: On a passive FTPS transfer libcurl runs the TLS handshake of the data connection inside a blocking Curl_conn_connect() call after the server's 150 (lib/ftp.c line 550 in curl-8_23_0, ftp_initiate_transfer()), and that blocking loop (lib/connect.c line 334) bounds itself with …

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 curl 所有。

时间线

阅读 HackerOne 原文 ↗作者 @1rhino2 · 版权归作者与 curl 所有

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