libcurl upload read callbacks miss recursive API guard, allowing prohibited multi API reentry and ASAN-confirmed UAF
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原文摘录
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Summary: Several libcurl upload read callback paths invoke the application-provided CURLOPT_READFUNCTION without marking the easy handle as being inside a callback. As a result, recursive multi APIs that are correctly rejected from ordinary callbacks are accepted from these upload read callback …
原文中的代码
lib/telnet.c TELNET CURLOPT_READFUNCTION path lib/ftp.c FTP upload resume fallback read path
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阅读 HackerOne 原文 ↗作者 @th3hound · 版权归作者与 curl 所有