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bug#17334: 24.3; Crash in cmdproxy.exe

From: Sohail Somani
Subject: bug#17334: 24.3; Crash in cmdproxy.exe
Date: Wed, 23 Apr 2014 23:58:57 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

There is a "bug" in cmdproxy.exe which should never happen, but does
anyway. In make_absolute, there is the following code:

  strncpy(dir, path, p - path);
  dir[p - path] = '\0';

If p-path > sizeof(dir), a buffer overrun occurs.

I came across this problem because I accidentally used ':' as a
separator when constructing the PATH variable in Emacs.



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