Feature #1800: rubygems can replace system executable files
http://redmine.ruby-lang.org/issues/show/1800

Author: Kazuhiro NISHIYAMA
Status: Open, Priority: Normal

Japanese blog http://wota.jp/ac/?date=20090604#p01 says,
gem has bin/ls and Gem::Specification#executables= ["ls"],
rubygem overwrites /usr/bin/ls without confirming.

I think this is potential security risk.


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