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地图 / Use-after-free when POST body buffer is freed before transfer

Use-after-free when POST body buffer is freed before transfer

内存破坏 / 释放后使用 / #3355213

厂商
curl
严重程度
低危
赏金
—
弱点
释放后使用
研究员
@giant_anteater
披露日期
2025-09-26
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(7660 字符中的一小部分)
Summary: I locally reproduced a heap use-after-free in libcurl by setting `CURLOPT_POSTFIELDSIZE` and `CURLOPT_POSTFIELDS` to a heap buffer and then freeing that buffer before `curl_easy_perform`. AddressSanitizer (ASan) reports a heap-use-after-free read during the request send path. This …
原文中的代码
     cmake -S . -B build-asan \
       -DCMAKE_BUILD_TYPE=RelWithDebInfo \
       -DBUILD_SHARED_LIBS=ON \
       -DCURL_USE_LIBPSL=OFF \
       -DCMAKE_C_FLAGS='-fsanitize=address -fno-omit-frame-pointer' \
       -DCMAKE_SHARED_LINKER_FLAGS='-fsanitize=address' \ …

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 @giant_anteater · 版权归作者与 curl 所有

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