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地图 / Invalid write (or double free) triggers curl command line tool crash

Invalid write (or double free) triggers curl command line tool crash

内存破坏 / 双重释放 / #875775

厂商
curl
严重程度
中危
赏金
—
弱点
双重释放
研究员
@geeknik
披露日期
2020-05-18
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(4573 字符中的一小部分)
Summary: Whilst fuzzing libcurl built from `git commit a158a09`, a crash triggered by an invalid write (or maybe a double/invalid free) was found.
原文中的代码
valgrind -q src/curl --verbose -q -K ~/curl/tmp/out/crashes/test0001 file:///dev/null
==12371== Invalid free() / delete / delete[] / realloc()
==12371==    at 0x48369AB: free (vg_replace_malloc.c:530)
==12371==    by 0x128C84: add_file_name_to_url (in /root/curl-no-asan/src/curl)
==12371==    by …

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 @geeknik · 版权归作者与 curl 所有

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