On Thu, May 01, 2008 at 10:24:51AM -0000, Mauro Vale wrote:
> Blender should use a random file name every time it needs to render.

Well, use of /tmp should be only by mkstemp().

> This way it is impossible to overwrite anything with a symlink ;)

Alternatively, require that the files not exist first, using open with
O_CREAT and O_EXCL.

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insecure file access (breezy, dapper, edgy, gutsy, hardy)
https://bugs.launchpad.net/bugs/6671
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