POJIA破甲
地图 / Use-after-free in `curl_easy_ssls_export()` during callback re-entrancy

Use-after-free in `curl_easy_ssls_export()` during callback re-entrancy

内存破坏 / 释放后使用 / #3682666

厂商
curl
严重程度
中危
赏金
—
弱点
释放后使用
研究员
@m1llie
披露日期
2026-04-29
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(2572 字符中的一小部分)
Summary: `curl_easy_ssls_export()` iterates the SSL session list and invokes a caller-provided callback for each entry. If that callback calls `curl_easy_ssls_import()` on the same easy handle, the import path can evict and free the current session node while the export loop still holds it. The …
原文中的代码
autoreconf -fi
CC=clang CFLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer -g -O1" \
LDFLAGS="-fsanitize=address,undefined" \
./configure --disable-shared --enable-ssls-export --with-openssl
make -j"$(nproc)"

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 @m1llie · 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