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地图 / huge COLUMNS causes progress-bar to buffer overflow

huge COLUMNS causes progress-bar to buffer overflow

内存破坏 / 经典缓冲区溢出 / #636013

厂商
curl
严重程度
低危
赏金
—
弱点
经典缓冲区溢出
研究员
@pendrek
披露日期
2021-02-08
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(1744 字符中的一小部分)
Summary: If an attacker can set environmental variables, curl will always crash with a buffer overflow when downloading a file – if the `--progress-bar` argument is set.
原文中的代码
# Of course you can set the COLUMNS variable in your `.profile` configuration file instead...
env COLUMNS="9223372032559808515" curl "http://hubblesource.stsci.edu/sources/video/clips/details/images/hale_bopp_2.mpg" -o "./test.mpg"

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 @pendrek · 版权归作者与 curl 所有

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