地图 / Buffer overflow in PyCArg_repr in _ctypes/callproc.c for Python 3.x to 3.9.1

Buffer overflow in PyCArg_repr in _ctypes/callproc.c for Python 3.x to 3.9.1

内存破坏 / 经典缓冲区溢出 / #1084342

厂商: Internet Bug Bounty
严重程度: 中危
赏金: $1,500
弱点: 经典缓冲区溢出
研究员: @jordyzomer
披露日期: 2021-08-25
资产: Python (Legacy)
CVE: CVE-2021-3177

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原文摘录

摘自原文（1779 字符中的一小部分）

Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf …

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时间线

2021-01-22报告提交
2021-08-25公开披露

阅读 HackerOne 原文 ↗作者 @jordyzomer · 版权归作者与 Internet Bug Bounty 所有

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Buffer overflow in PyCArg_repr in _ctypes/callproc.c for Python 3.x to 3.9.1 · 破甲 POJIA