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OpenSSL provider OSSL_LIB_CTX used after free via the connection shutdown list (CVE-2026-80229 fix incomplete)

内存破坏 / 释放后使用 / #4118643

厂商
curl
严重程度
低危
赏金
—
弱点
释放后使用
研究员
@sujitjaunjal
披露日期
2026-10-26
资产
https://github.com/curl/curl
CVE
CVE-2026-80229

该报告还没有中文解读。

原文摘录

摘自原文(5693 字符中的一小部分)
Summary: The CVE-2026-80229 fix (7ea37abc6a, 8.22.0) only marks provider connections connclose(), but a closed TLS connection is handed to the multi handle's shutdown list (lib/conncache.c:242) and outlives its easy handle, while curl_easy_cleanup() frees the handle's OSSL_LIB_CTX …
原文中的代码
curl 8.23.0-DEV (Darwin) libcurl/8.23.0-DEV OpenSSL/3.6.4 zlib/1.2.12
curl 8.23.0-DEV (Linux) libcurl/8.23.0-DEV OpenSSL/3.0.22
curl 8.22.0 (aarch64-apple-darwin25.6.0) libcurl/8.22.0 OpenSSL/3.6.4 zlib/1.2.12 brotli/1.2.0 zstd/1.5.7 AppleIDN libpsl/0.23.3 libssh2/1.11.1 nghttp2/1.70.0 …

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

阅读 HackerOne 原文 ↗作者 @sujitjaunjal · 版权归作者与 curl 所有

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