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地图 / Memory leak in Curl_auth_create_ntlm_type3_message

Memory leak in Curl_auth_create_ntlm_type3_message

拒绝服务 / 资源消耗失控 / #3393539

厂商
curl
严重程度
低危
赏金
—
弱点
资源消耗失控
研究员
@tjbecker_theori
披露日期
2025-10-28
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(4142 字符中的一小部分)
Summary: When handling NTLMv2, if the decoded type-2 “TargetInfo” is large enough that `ntresplen+header_size` exceeds `NTLM_BUFSIZE` (1024), the code returns early without freeing `ntlmv2resp`, causing a memory leak.
原文中的代码
 ./build/curl_fuzzer_http input.bin 
[input.bin] Opened.. Read 1408 bytes, fuzzing.. complete !!

=================================================================
==2757954==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 964 byte(s) in 1 object(s) allocated from:
    #0 0x563de804999d …

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 @tjbecker_theori · 版权归作者与 curl 所有

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