POJIA破甲
地图 / heap-use-after-free in state.referer when CURLOPT_REFERER replaced or cleared after perform

heap-use-after-free in state.referer when CURLOPT_REFERER replaced or cleared after perform

内存破坏 / 释放后使用 / #3774279

厂商
curl
严重程度
低危
赏金
—
弱点
释放后使用
研究员
@fg0x0
披露日期
2026-06-11
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(5857 字符中的一小部分)
Calling `curl_easy_setopt(curl, CURLOPT_REFERER, ...)` to replace or clear a previously-set referer after `curl_easy_perform()` frees the old string via `Curl_setstropt` (lib/setopt.c:87) but leaves `data->state.referer.ptr` pointing at the freed heap region. `curl_easy_getinfo(CURLINFO_REFERER)` …
原文中的代码
curl 8.14.0-DEV (x86_64-pc-linux-gnu) libcurl/8.14.0-DEV OpenSSL/3.5.0 zlib/1.3.1
Built with ASAN+UBSan: -fsanitize=address,undefined -O0 -g

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 @fg0x0 · 版权归作者与 curl 所有

同类报告

Use-After-Free In IPV6_2292PKTOPTIONS leading To Arbitrary Kernel R/W PrimitivesPlayStation · 2020-07-06 · $10,000sys_fsc2h_ctrl kernel stack freePlayStation · 2025-04-18 · $10,000Use-after-free in setsockopt IPV6_2292PKTOPTIONS (CVE-2020-7457)PlayStation · 2022-09-20 · $10,000CVE-2021-22901: TLS session caching disastercurl · 2021-05-26Old WebKit HTML agent in Template Preview function has multiple known vulnerabilities leading to RCELob · — · $1,500Use-After-Free in SMB connection reuse (req->path dangling pointer after needle destruction)curl · 2026-04-29