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地图 / 54: Rejected HTTP/2 push destroys MIME callback state still used by parent (use-after-free)

54: Rejected HTTP/2 push destroys MIME callback state still used by parent (use-after-free)

内存破坏 / 释放后使用 / #3973213

厂商
curl
严重程度
未评级
赏金
—
弱点
释放后使用
研究员
@giant_anteater
披露日期
2026-09-07
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(5682 字符中的一小部分)
`push_promise()` in `lib/http2.c` duplicates the parent easy handle **before** validating the pushed URL. When validation fails (e.g. unsupported scheme), `discard_newhandle()` destroys the duplicate. For callback-backed MIME uploads, `Curl_mime_duppart()` copies the same `readfunc`, `freefunc`, …

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 @giant_anteater · 版权归作者与 curl 所有

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