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地图 / CVE-2026-11352: QUIC zero-length UDP datagrams busy-loop

CVE-2026-11352: QUIC zero-length UDP datagrams busy-loop

拒绝服务 / 资源消耗失控 / #3783438

厂商
curl
严重程度
低危
赏金
—
弱点
资源消耗失控
研究员
@vectorqueue
披露日期
2026-06-24
资产
https://github.com/curl/curl
CVE
CVE-2026-11352

该报告还没有中文解读。

原文摘录

摘自原文(18046 字符中的一小部分)
Summary: curl's QUIC UDP receive helper ignores zero-length UDP datagrams before counting them against the per-call packet budget. On Linux, `recvmmsg_packets()` loops while `pkts < max_pkts`, but `if(!mmsg[i].msg_len) continue;` runs before `pkts` is incremented. The `recvmsg_packets()` backend …
原文中的代码
curl 8.20.0-DEV (Linux) libcurl/8.20.0-DEV OpenSSL/3.5.6 zlib/1.2.11 libpsl/0.21.0 ngtcp2/1.23.0 nghttp3/1.16.0
Release-Date: [unreleased]
Protocols: dict file ftp ftps gopher gophers http https imap imaps ipfs ipns mqtt mqtts pop3 pop3s rtsp smtp smtps telnet tftp ws wss
Features: alt-svc …

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

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @vectorqueue · 版权归作者与 curl 所有

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