On 2008-08-15 12:13 +0200, Sven Joachim wrote:

> Well, I don't think this is a serious problem, since mktemp will create
> a different file if the one with the pid already exists.  The
> predictability of the file name is not nice, but it is only a security
> problem if you create the file in a world-writable directory that does
> not have the sticky bit set.  And in such directories, you're subject to
> all kinds of race conditions anyway.

However, Nico Golde informed me that mktemp has a `-u' switch which will
unlink the file before mktemp exits.  If you use that, the easy-to-guess
filename becomes a severe problem.

Sven


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